FC_FUNC(mpi_waitsome, MPI_WAITSOME)
(int * incount, int * array_of_requests, int * outcount,
int * array_of_indices, int *array_of_statuses, int * ierr)
{
*ierr = MPI_Waitsome(*incount, array_of_requests, outcount,
array_of_indices, mpi_c_statuses(array_of_statuses));
}
int
SAMRAI_MPI::Waitsome(
int incount,
Request* array_of_requests,
int* outcount,
int* array_of_indices,
Status* array_of_statuses)
{
#ifndef HAVE_MPI
NULL_USE(incount);
NULL_USE(array_of_requests);
NULL_USE(outcount);
NULL_USE(array_of_indices);
NULL_USE(array_of_statuses);
#endif
int rval = MPI_SUCCESS;
if (!s_mpi_is_initialized) {
TBOX_ERROR("SAMRAI_MPI::Waitsome is a no-op without run-time MPI!");
}
#ifdef HAVE_MPI
else {
rval = MPI_Waitsome(incount, array_of_requests, outcount, array_of_indices, array_of_statuses);
}
#endif
return rval;
}
SEXP spmd_waitsome(SEXP R_count){
int countn = INTEGER(R_count)[0];
SEXP R_indices;
PROTECT(R_indices = allocVector(INTSXP, countn + 1));
spmd_errhandler(
MPI_Waitsome(countn, request, &INTEGER(R_indices)[0],
&INTEGER(R_indices)[1], status));
UNPROTECT(1);
return(R_indices);
} /* End of spmd_waitsome(). */
int main(int argc, char *argv[])
{
int provided;
MPI_Request request;
int outcount = -1;
int indices[1] = {-1};
MPI_Status status;
char *env;
env = getenv("MPITEST_VERBOSE");
if (env)
{
if (*env != '0')
verbose = 1;
}
MPI_Init_thread( &argc, &argv, MPI_THREAD_MULTIPLE, &provided);
if (provided != MPI_THREAD_MULTIPLE) {
printf( "This test requires MPI_THREAD_MULTIPLE\n" );
MPI_Abort( MPI_COMM_WORLD, 1 );
}
IF_VERBOSE(("Post Init ...\n"));
MPI_Grequest_start(query_fn, free_fn, cancel_fn, NULL, &request);
grequest = request; /* copy the handle */
MTest_Start_thread(do_work, &grequest);
IF_VERBOSE(("Waiting ...\n"));
MPI_Wait(&request, &status);
MTest_Join_threads();
MPI_Grequest_start(query_fn, free_fn, cancel_fn, NULL, &request);
grequest = request; /* copy the handle */
MTest_Start_thread(do_work, &grequest);
IF_VERBOSE(("Waiting ...\n"));
MPI_Waitsome(1, &request, &outcount, indices, &status);
MTest_Join_threads();
MPI_Grequest_start(query_fn, free_fn, cancel_fn, NULL, &request);
grequest = request; /* copy the handle */
MTest_Start_thread(do_work, &grequest);
IF_VERBOSE(("Waiting ...\n"));
MPI_Waitall(1, &request, &status);
MTest_Join_threads();
IF_VERBOSE(("Goodbye !!!\n"));
MTest_Finalize(0);
MPI_Finalize();
return 0;
}
FORT_DLL_SPEC void FORT_CALL mpi_waitsome_ ( MPI_Fint *v1, MPI_Fint v2[], MPI_Fint *v3, MPI_Fint v4[], MPI_Fint v5[], MPI_Fint *ierr ){
#ifndef HAVE_MPI_F_INIT_WORKS_WITH_C
if (MPIR_F_NeedInit){ mpirinitf_(); MPIR_F_NeedInit = 0; }
#endif
if (v5 == MPI_F_STATUSES_IGNORE) { v5 = (MPI_Fint *)MPI_STATUSES_IGNORE; }
*ierr = MPI_Waitsome( (int)*v1, (MPI_Request *)(v2), v3, v4, (MPI_Status *)v5 );
{int li;
for (li=0; li<*v3; li++) {
if (v4[li] >= 0) v4[li] += 1;
}
}
}
void AsyncAcks::wait_and_cleanup() {
//if no requests, then nothing to do
if (next_slot_ == 0)
return;
//check for satisfied requests
int outcount;
int array_of_indices[next_slot_];
SIPMPIUtils::check_err(
MPI_Waitsome(next_slot_, posted_async_, &outcount, array_of_indices,
MPI_STATUSES_IGNORE));
// std::cout << " in wait_and_cleanup, "<< outcount << " acks released" << std::endl << std::flush;
remove_completed_requests(outcount, array_of_indices);
}
JNIEXPORT jobjectArray JNICALL Java_mpi_Request_waitSomeStatus(
JNIEnv *env, jclass clazz, jlongArray requests)
{
int incount = (*env)->GetArrayLength(env, requests);
jlong* jReq;
MPI_Request *cReq;
ompi_java_getPtrArray(env, requests, &jReq, (void***)&cReq);
MPI_Status *statuses = (MPI_Status*)calloc(incount, sizeof(MPI_Status));
int *indices = (int*)calloc(incount, sizeof(int));
int outcount;
int rc = MPI_Waitsome(incount, cReq, &outcount, indices, statuses);
ompi_java_exceptionCheck(env, rc);
ompi_java_releasePtrArray(env, requests, jReq, (void**)cReq);
jobjectArray jStatuses = newStatusesIndices(env, statuses, indices, outcount);
free(statuses);
free(indices);
return jStatuses;
}
JNIEXPORT jintArray JNICALL Java_mpi_Request_waitSome(
JNIEnv *env, jclass clazz, jlongArray requests)
{
int incount = (*env)->GetArrayLength(env, requests);
jlong* jReq;
MPI_Request *cReq;
ompi_java_getPtrArray(env, requests, &jReq, (void***)&cReq);
int *indices = (int*)calloc(incount, sizeof(int));
int outcount;
int rc = MPI_Waitsome(incount, cReq, &outcount, indices, MPI_STATUSES_IGNORE);
ompi_java_exceptionCheck(env, rc);
ompi_java_releasePtrArray(env, requests, jReq, (void**)cReq);
jintArray jindices = NULL;
if(outcount != MPI_UNDEFINED)
{
jindices = (*env)->NewIntArray(env, outcount);
setIndices(env, jindices, indices, outcount);
}
free(indices);
return jindices;
}
int
main (int argc, char **argv)
{
int nprocs = -1;
int rank = -1;
MPI_Comm comm = MPI_COMM_WORLD;
char processor_name[128];
int namelen = 128;
int bbuf[(BUF_SIZE + MPI_BSEND_OVERHEAD) * 2 * NUM_BSEND_TYPES];
int buf[BUF_SIZE * 2 * NUM_SEND_TYPES];
int i, j, k, at_size, send_t_number, index, outcount, total, flag;
int num_errors, error_count, indices[2 * NUM_SEND_TYPES];
MPI_Request aReq[2 * NUM_SEND_TYPES];
MPI_Status aStatus[2 * NUM_SEND_TYPES];
/* init */
MPI_Init (&argc, &argv);
MPI_Comm_size (comm, &nprocs);
MPI_Comm_rank (comm, &rank);
MPI_Get_processor_name (processor_name, &namelen);
printf ("(%d) is alive on %s\n", rank, processor_name);
fflush (stdout);
MPI_Buffer_attach (bbuf, sizeof(int) *
(BUF_SIZE + MPI_BSEND_OVERHEAD) * 2 * NUM_BSEND_TYPES);
if (rank == 0) {
/* set up persistent sends... */
send_t_number = NUM_SEND_TYPES - NUM_PERSISTENT_SEND_TYPES;
MPI_Send_init (&buf[send_t_number * 2 * BUF_SIZE], BUF_SIZE, MPI_INT,
1, send_t_number * 2, comm, &aReq[send_t_number * 2]);
MPI_Send_init (&buf[(send_t_number * 2 + 1) * BUF_SIZE],
BUF_SIZE, MPI_INT, 1, send_t_number * 2 + 1,
comm, &aReq[send_t_number * 2 + 1]);
send_t_number++;
MPI_Bsend_init (&buf[send_t_number * 2 * BUF_SIZE], BUF_SIZE, MPI_INT,
1, send_t_number * 2, comm, &aReq[send_t_number * 2]);
MPI_Bsend_init (&buf[(send_t_number * 2 + 1) * BUF_SIZE],
BUF_SIZE, MPI_INT, 1, send_t_number * 2 + 1,
comm, &aReq[send_t_number * 2 + 1]);
send_t_number++;
MPI_Rsend_init (&buf[send_t_number * 2 * BUF_SIZE], BUF_SIZE, MPI_INT,
1, send_t_number * 2, comm, &aReq[send_t_number * 2]);
MPI_Rsend_init (&buf[(send_t_number * 2 + 1) * BUF_SIZE],
BUF_SIZE, MPI_INT, 1, send_t_number * 2 + 1,
comm, &aReq[send_t_number * 2 + 1]);
send_t_number++;
MPI_Ssend_init (&buf[send_t_number * 2 * BUF_SIZE], BUF_SIZE, MPI_INT,
1, send_t_number * 2, comm, &aReq[send_t_number * 2]);
MPI_Ssend_init (&buf[(send_t_number * 2 + 1) * BUF_SIZE],
BUF_SIZE, MPI_INT, 1, send_t_number * 2 + 1,
comm, &aReq[send_t_number * 2 + 1]);
}
for (k = 0; k < (NUM_COMPLETION_MECHANISMS * 2); k++) {
if (rank == 0) {
/* initialize all of the send buffers */
for (j = 0; j < NUM_SEND_TYPES; j++) {
for (i = 0; i < BUF_SIZE; i++) {
buf[2 * j * BUF_SIZE + i] = i;
buf[((2 * j + 1) * BUF_SIZE) + i] = BUF_SIZE - 1 - i;
}
}
}
else if (rank == 1) {
/* zero out all of the receive buffers */
bzero (buf, sizeof(int) * BUF_SIZE * 2 * NUM_SEND_TYPES);
}
MPI_Barrier(MPI_COMM_WORLD);
if (rank == 0) {
/* set up transient sends... */
send_t_number = 0;
MPI_Isend (&buf[send_t_number * 2 * BUF_SIZE], BUF_SIZE, MPI_INT,
1, send_t_number * 2, comm, &aReq[send_t_number * 2]);
MPI_Isend (&buf[(send_t_number * 2 + 1) * BUF_SIZE],
BUF_SIZE, MPI_INT, 1, send_t_number * 2 + 1,
comm, &aReq[send_t_number * 2 + 1]);
send_t_number++;
MPI_Ibsend (&buf[send_t_number * 2 * BUF_SIZE], BUF_SIZE, MPI_INT,
1, send_t_number * 2, comm, &aReq[send_t_number * 2]);
MPI_Ibsend (&buf[(send_t_number * 2 + 1) * BUF_SIZE],
BUF_SIZE, MPI_INT, 1, send_t_number * 2 + 1,
comm, &aReq[send_t_number * 2 + 1]);
send_t_number++;
/* Barrier to ensure receives are posted for rsends... */
MPI_Barrier(MPI_COMM_WORLD);
MPI_Irsend (&buf[send_t_number * 2 * BUF_SIZE], BUF_SIZE, MPI_INT,
1, send_t_number * 2, comm, &aReq[send_t_number * 2]);
MPI_Irsend (&buf[(send_t_number * 2 + 1) * BUF_SIZE],
BUF_SIZE, MPI_INT, 1, send_t_number * 2 + 1,
comm, &aReq[send_t_number * 2 + 1]);
send_t_number++;
MPI_Issend (&buf[send_t_number * 2 * BUF_SIZE], BUF_SIZE, MPI_INT,
1, send_t_number * 2, comm, &aReq[send_t_number * 2]);
MPI_Issend (&buf[(send_t_number * 2 + 1) * BUF_SIZE],
BUF_SIZE, MPI_INT, 1, send_t_number * 2 + 1,
comm, &aReq[send_t_number * 2 + 1]);
/* just to be paranoid */
send_t_number++;
assert (send_t_number == NUM_SEND_TYPES - NUM_PERSISTENT_SEND_TYPES);
/* start the persistent sends... */
if (k % 2) {
MPI_Startall (NUM_PERSISTENT_SEND_TYPES * 2, &aReq[2 * send_t_number]);
}
else {
for (j = 0; j < NUM_PERSISTENT_SEND_TYPES * 2; j++) {
MPI_Start (&aReq[2 * send_t_number + j]);
}
}
/* NOTE: Changing the send buffer of a Bsend is NOT an error... */
for (j = 0; j < NUM_SEND_TYPES; j++) {
/* muck the buffers */
buf[j * 2 * BUF_SIZE + (BUF_SIZE >> 1)] = BUF_SIZE;
}
printf ("USER MSG: 6 change send buffer errors in iteration #%d:\n", k);
/* complete the sends */
switch (k/2) {
case 0:
/* use MPI_Wait */
for (j = 0; j < NUM_SEND_TYPES * 2; j++) {
MPI_Wait (&aReq[j], &aStatus[j]);
}
break;
case 1:
/* use MPI_Waitall */
MPI_Waitall (NUM_SEND_TYPES * 2, aReq, aStatus);
break;
case 2:
/* use MPI_Waitany */
for (j = 0; j < NUM_SEND_TYPES * 2; j++) {
MPI_Waitany (NUM_SEND_TYPES * 2, aReq, &index, aStatus);
}
break;
case 3:
/* use MPI_Waitsome */
total = 0;
while (total < NUM_SEND_TYPES * 2) {
MPI_Waitsome (NUM_SEND_TYPES * 2, aReq, &outcount, indices, aStatus);
total += outcount;
}
break;
case 4:
/* use MPI_Test */
for (j = 0; j < NUM_SEND_TYPES * 2; j++) {
flag = 0;
while (!flag) {
MPI_Test (&aReq[j], &flag, &aStatus[j]);
}
}
break;
case 5:
/* use MPI_Testall */
flag = 0;
while (!flag) {
MPI_Testall (NUM_SEND_TYPES * 2, aReq, &flag, aStatus);
}
break;
case 6:
/* use MPI_Testany */
for (j = 0; j < NUM_SEND_TYPES * 2; j++) {
flag = 0;
while (!flag) {
MPI_Testany (NUM_SEND_TYPES * 2, aReq, &index, &flag, aStatus);
}
}
break;
case 7:
/* use MPI_Testsome */
total = 0;
while (total < NUM_SEND_TYPES * 2) {
outcount = 0;
while (!outcount) {
MPI_Testsome (NUM_SEND_TYPES * 2, aReq,
&outcount, indices, aStatus);
}
total += outcount;
}
break;
default:
assert (0);
break;
}
}
else if (rank == 1) {
static void complete_something_somehow(unsigned int rndnum, int numreqs, MPI_Request reqs[], int *outcount, int indices[])
{
int i, idx, flag;
#define COMPLETION_CASES (8)
switch (rand_range(rndnum, 0, COMPLETION_CASES)) {
case 0:
MPI_Waitall(numreqs, reqs, MPI_STATUSES_IGNORE);
*outcount = numreqs;
for (i = 0; i < numreqs; ++i) {
indices[i] = i;
}
break;
case 1:
MPI_Testsome(numreqs, reqs, outcount, indices, MPI_STATUS_IGNORE);
if (*outcount == MPI_UNDEFINED) {
*outcount = 0;
}
break;
case 2:
MPI_Waitsome(numreqs, reqs, outcount, indices, MPI_STATUS_IGNORE);
if (*outcount == MPI_UNDEFINED) {
*outcount = 0;
}
break;
case 3:
MPI_Waitany(numreqs, reqs, &idx, MPI_STATUS_IGNORE);
if (idx == MPI_UNDEFINED) {
*outcount = 0;
}
else {
*outcount = 1;
indices[0] = idx;
}
break;
case 4:
MPI_Testany(numreqs, reqs, &idx, &flag, MPI_STATUS_IGNORE);
if (idx == MPI_UNDEFINED) {
*outcount = 0;
}
else {
*outcount = 1;
indices[0] = idx;
}
break;
case 5:
MPI_Testall(numreqs, reqs, &flag, MPI_STATUSES_IGNORE);
if (flag) {
*outcount = numreqs;
for (i = 0; i < numreqs; ++i) {
indices[i] = i;
}
}
else {
*outcount = 0;
}
break;
case 6:
/* select a new random index and wait on it */
rndnum = gen_prn(rndnum);
idx = rand_range(rndnum, 0, numreqs);
MPI_Wait(&reqs[idx], MPI_STATUS_IGNORE);
*outcount = 1;
indices[0] = idx;
break;
case 7:
/* select a new random index and wait on it */
rndnum = gen_prn(rndnum);
idx = rand_range(rndnum, 0, numreqs);
MPI_Test(&reqs[idx], &flag, MPI_STATUS_IGNORE);
*outcount = (flag ? 1 : 0);
indices[0] = idx;
break;
default:
assert(0);
break;
}
#undef COMPLETION_CASES
}
int main(int argc, char **argv)
{
int errs = 0;
MPI_Status status, *status_array = 0;
int count = 0, flag, idx, rc, errlen, *indices=0, outcnt;
MPI_Request *reqs = 0;
char errmsg[MPI_MAX_ERROR_STRING];
MTest_Init(&argc, &argv);
MPI_Comm_set_errhandler( MPI_COMM_WORLD, MPI_ERRORS_RETURN );
rc = MPI_Testall( count, reqs, &flag, status_array );
if (rc != MPI_SUCCESS) {
MPI_Error_string( rc, errmsg, &errlen );
printf( "MPI_Testall returned failure: %s\n", errmsg );
errs ++;
}
else if (!flag) {
printf( "MPI_Testall( 0, ... ) did not return a true flag\n") ;
errs++;
}
rc = MPI_Waitall( count, reqs, status_array );
if (rc != MPI_SUCCESS) {
MPI_Error_string( rc, errmsg, &errlen );
printf( "MPI_Waitall returned failure: %s\n", errmsg );
errs ++;
}
rc = MPI_Testany( count, reqs, &idx, &flag, &status );
if (rc != MPI_SUCCESS) {
MPI_Error_string( rc, errmsg, &errlen );
printf( "MPI_Testany returned failure: %s\n", errmsg );
errs ++;
}
else if (!flag) {
printf( "MPI_Testany( 0, ... ) did not return a true flag\n") ;
errs++;
}
rc = MPI_Waitany( count, reqs, &idx, &status );
if (rc != MPI_SUCCESS) {
MPI_Error_string( rc, errmsg, &errlen );
printf( "MPI_Waitany returned failure: %s\n", errmsg );
errs ++;
}
rc = MPI_Testsome( count, reqs, &outcnt, indices, status_array );
if (rc != MPI_SUCCESS) {
MPI_Error_string( rc, errmsg, &errlen );
printf( "MPI_Testsome returned failure: %s\n", errmsg );
errs ++;
}
rc = MPI_Waitsome( count, reqs, &outcnt, indices, status_array );
if (rc != MPI_SUCCESS) {
MPI_Error_string( rc, errmsg, &errlen );
printf( "MPI_Waitsome returned failure: %s\n", errmsg );
errs ++;
}
MTest_Finalize( errs );
MPI_Finalize();
return 0;
}
int main( int argc, char *argv[] )
{
int errs = 0;
MPI_Comm comm;
MPI_Request r[2];
MPI_Status s[2];
int indices[2], outcount;
int errval, errclass;
int b1[20], b2[20], rank, size, src, dest, i, j;
MTest_Init( &argc, &argv );
/* Create some receive requests. tags 0-9 will succeed, tags 10-19
will be used for ERR_TRUNCATE (fewer than 20 messages will be used) */
comm = MPI_COMM_WORLD;
MPI_Comm_rank( comm, &rank );
MPI_Comm_size( comm, &size );
src = 1;
dest = 0;
if (rank == dest) {
MPI_Errhandler_set( comm, MPI_ERRORS_RETURN );
errval = MPI_Irecv( b1, 10, MPI_INT, src, 0, comm, &r[0] );
if (errval) {
errs++;
MTestPrintError( errval );
printf( "Error returned from Irecv\n" );
}
errval = MPI_Irecv( b2, 10, MPI_INT, src, 10, comm, &r[1] );
if (errval) {
errs++;
MTestPrintError( errval );
printf( "Error returned from Irecv\n" );
}
/* synchronize */
errval = MPI_Recv(NULL, 0, MPI_INT, src, 10, comm, MPI_STATUS_IGNORE);
if (errval) {
errs++;
MTestPrintError( errval );
printf( "Error returned from Recv\n" );
}
for (i=0; i<2; i++) {
s[i].MPI_ERROR = -1;
}
errval = MPI_Waitsome( 2, r, &outcount, indices, s );
MPI_Error_class( errval, &errclass );
if (errclass != MPI_ERR_IN_STATUS) {
errs++;
printf( "Did not get ERR_IN_STATUS in Waitsome. Got %d.\n", errval );
}
else if (outcount != 2) {
errs++;
printf( "Wait returned outcount = %d\n", outcount );
}
else {
/* Check for success */
for (i=0; i<outcount; i++) {
j = i;
/* Indices is the request index */
if (s[j].MPI_TAG < 10 && s[j].MPI_ERROR != MPI_SUCCESS) {
errs++;
printf( "correct msg had error class %d\n",
s[j].MPI_ERROR );
}
else if (s[j].MPI_TAG >= 10 && s[j].MPI_ERROR == MPI_SUCCESS) {
errs++;
printf( "truncated msg had MPI_SUCCESS\n" );
}
}
}
}
else if (rank == src) {
/* Send test messages, then send another message so that the test does
not start until we are sure that the sends have begun */
MPI_Send( b1, 10, MPI_INT, dest, 0, comm );
MPI_Send( b2, 11, MPI_INT, dest, 10, comm );
/* synchronize */
MPI_Ssend( NULL, 0, MPI_INT, dest, 10, comm );
}
MTest_Finalize( errs );
MPI_Finalize();
return 0;
}
int main( int argc, char **argv )
{
MPI_Request r1;
int size, rank;
int err = 0;
int partner, buf[10], flag, idx, index;
MPI_Status status;
MPI_Init( &argc, &argv );
MPI_Comm_size( MPI_COMM_WORLD, &size );
MPI_Comm_rank( MPI_COMM_WORLD, &rank );
if (size < 2) {
printf( "Cancel test requires at least 2 processes\n" );
MPI_Abort( MPI_COMM_WORLD, 1 );
}
/*
* Here is the test. First, we ensure an unsatisfied Irecv:
* process 0 process size-1
* Sendrecv Sendrecv
* Irecv ----
* Cancel ----
* Sendrecv Sendrecv
* Next, we confirm receipt before canceling
* Irecv Send
* Sendrecv Sendrecv
* Cancel
*/
if (rank == 0) {
partner = size - 1;
/* Cancel succeeds for wait/waitall */
MPI_Recv_init( buf, 10, MPI_INT, partner, 0, MPI_COMM_WORLD, &r1 );
MPI_Sendrecv( MPI_BOTTOM, 0, MPI_INT, partner, 1,
MPI_BOTTOM, 0, MPI_INT, partner, 1,
MPI_COMM_WORLD, &status );
MPI_Start( &r1 );
MPI_Cancel( &r1 );
MPI_Wait( &r1, &status );
MPI_Test_cancelled( &status, &flag );
MPI_Sendrecv( MPI_BOTTOM, 0, MPI_INT, partner, 1,
MPI_BOTTOM, 0, MPI_INT, partner, 1,
MPI_COMM_WORLD, &status );
if (!flag) {
err++;
printf( "Cancel of a receive failed where it should succeed (Wait).\n" );
}
MPI_Request_free( &r1 );
/* Cancel fails for test/testall */
buf[0] = -1;
MPI_Recv_init( buf, 10, MPI_INT, partner, 2, MPI_COMM_WORLD, &r1 );
MPI_Start( &r1 );
MPI_Sendrecv( MPI_BOTTOM, 0, MPI_INT, partner, 1,
MPI_BOTTOM, 0, MPI_INT, partner, 1,
MPI_COMM_WORLD, &status );
MPI_Cancel( &r1 );
MPI_Test( &r1, &flag, &status );
MPI_Test_cancelled( &status, &flag );
if (flag) {
err++;
printf( "Cancel of a receive succeeded where it shouldn't (Test).\n" );
if (buf[0] != -1) {
printf( "Receive buffer changed even though cancel suceeded! (Test).\n" );
}
}
MPI_Request_free( &r1 );
/* Cancel succeeds for waitany */
MPI_Recv_init( buf, 10, MPI_INT, partner, 0, MPI_COMM_WORLD, &r1 );
MPI_Sendrecv( MPI_BOTTOM, 0, MPI_INT, partner, 1,
MPI_BOTTOM, 0, MPI_INT, partner, 1,
MPI_COMM_WORLD, &status );
MPI_Start( &r1 );
MPI_Cancel( &r1 );
MPI_Waitany( 1, &r1, &idx, &status );
MPI_Test_cancelled( &status, &flag );
MPI_Sendrecv( MPI_BOTTOM, 0, MPI_INT, partner, 1,
MPI_BOTTOM, 0, MPI_INT, partner, 1,
MPI_COMM_WORLD, &status );
if (!flag) {
err++;
printf( "Cancel of a receive failed where it should succeed (Waitany).\n" );
}
MPI_Request_free( &r1 );
/* Cancel fails for testany */
buf[0] = -1;
MPI_Recv_init( buf, 10, MPI_INT, partner, 2, MPI_COMM_WORLD, &r1 );
MPI_Start( &r1 );
MPI_Sendrecv( MPI_BOTTOM, 0, MPI_INT, partner, 1,
MPI_BOTTOM, 0, MPI_INT, partner, 1,
MPI_COMM_WORLD, &status );
MPI_Cancel( &r1 );
MPI_Testany( 1, &r1, &idx, &flag, &status );
MPI_Test_cancelled( &status, &flag );
if (flag) {
err++;
printf( "Cancel of a receive succeeded where it shouldn't (Testany).\n" );
if (buf[0] != -1) {
printf( "Receive buffer changed even though cancel suceeded! (Test).\n" );
}
}
MPI_Request_free( &r1 );
/* Cancel succeeds for waitsome */
MPI_Recv_init( buf, 10, MPI_INT, partner, 0, MPI_COMM_WORLD, &r1 );
MPI_Sendrecv( MPI_BOTTOM, 0, MPI_INT, partner, 1,
MPI_BOTTOM, 0, MPI_INT, partner, 1,
MPI_COMM_WORLD, &status );
MPI_Start( &r1 );
MPI_Cancel( &r1 );
MPI_Waitsome( 1, &r1, &idx, &index, &status );
MPI_Test_cancelled( &status, &flag );
MPI_Sendrecv( MPI_BOTTOM, 0, MPI_INT, partner, 1,
MPI_BOTTOM, 0, MPI_INT, partner, 1,
MPI_COMM_WORLD, &status );
if (!flag) {
err++;
printf( "Cancel of a receive failed where it should succeed (Waitsome).\n" );
}
MPI_Request_free( &r1 );
/* Cancel fails for testsome*/
buf[0] = -1;
MPI_Recv_init( buf, 10, MPI_INT, partner, 2, MPI_COMM_WORLD, &r1 );
MPI_Start( &r1 );
MPI_Sendrecv( MPI_BOTTOM, 0, MPI_INT, partner, 1,
MPI_BOTTOM, 0, MPI_INT, partner, 1,
MPI_COMM_WORLD, &status );
MPI_Cancel( &r1 );
MPI_Testsome( 1, &r1, &idx, &index, &status );
MPI_Test_cancelled( &status, &flag );
if (flag) {
err++;
printf( "Cancel of a receive succeeded where it shouldn't (Testsome).\n" );
if (buf[0] != -1) {
printf( "Receive buffer changed even though cancel suceeded! (Testsome).\n" );
}
}
MPI_Request_free( &r1 );
if (err) {
printf( "Test failed with %d errors.\n", err );
}
else {
printf( " No Errors\n" );
}
}
else if (rank == size - 1) {
partner = 0;
/* Cancel succeeds for wait/waitall */
MPI_Sendrecv( MPI_BOTTOM, 0, MPI_INT, partner, 1,
MPI_BOTTOM, 0, MPI_INT, partner, 1,
MPI_COMM_WORLD, &status );
MPI_Sendrecv( MPI_BOTTOM, 0, MPI_INT, partner, 1,
MPI_BOTTOM, 0, MPI_INT, partner, 1,
MPI_COMM_WORLD, &status );
/* Cancel fails for test/testall */
buf[0] = 3;
MPI_Send( buf, 3, MPI_INT, partner, 2, MPI_COMM_WORLD );
MPI_Sendrecv( MPI_BOTTOM, 0, MPI_INT, partner, 1,
MPI_BOTTOM, 0, MPI_INT, partner, 1,
MPI_COMM_WORLD, &status );
/* Cancel succeeds for waitany */
MPI_Sendrecv( MPI_BOTTOM, 0, MPI_INT, partner, 1,
MPI_BOTTOM, 0, MPI_INT, partner, 1,
MPI_COMM_WORLD, &status );
MPI_Sendrecv( MPI_BOTTOM, 0, MPI_INT, partner, 1,
MPI_BOTTOM, 0, MPI_INT, partner, 1,
MPI_COMM_WORLD, &status );
/* Cancel fails for testany */
MPI_Send( buf, 3, MPI_INT, partner, 2, MPI_COMM_WORLD );
MPI_Sendrecv( MPI_BOTTOM, 0, MPI_INT, partner, 1,
MPI_BOTTOM, 0, MPI_INT, partner, 1,
MPI_COMM_WORLD, &status );
/* Cancel succeeds for waitsome */
MPI_Sendrecv( MPI_BOTTOM, 0, MPI_INT, partner, 1,
MPI_BOTTOM, 0, MPI_INT, partner, 1,
MPI_COMM_WORLD, &status );
MPI_Sendrecv( MPI_BOTTOM, 0, MPI_INT, partner, 1,
MPI_BOTTOM, 0, MPI_INT, partner, 1,
MPI_COMM_WORLD, &status );
/* Cancel fails for waitsome */
MPI_Send( buf, 3, MPI_INT, partner, 2, MPI_COMM_WORLD );
MPI_Sendrecv( MPI_BOTTOM, 0, MPI_INT, partner, 1,
MPI_BOTTOM, 0, MPI_INT, partner, 1,
MPI_COMM_WORLD, &status );
/*
Next test - check that a cancel for a request receive from
MPI_PROC_NULL succeeds (there is some suspicion that some
systems can't handle this - also, MPI_REQUEST_NULL
*/
/* A null request is an error. (null objects are errors unless otherwise
allowed)
r1 = MPI_REQUEST_NULL;
MPI_Cancel( &r1 );
*/
MPI_Recv_init( buf, 10, MPI_INT, MPI_PROC_NULL, 0, MPI_COMM_WORLD, &r1 );
MPI_Start( &r1 );
MPI_Cancel( &r1 );
MPI_Request_free( &r1 ); /* Must complete cancel. We know that it
won't complete, so we don't need to do
anything else */
}
MPI_Finalize();
return 0;
}
// ****************************************************************************
// Method: avtGTCFileFormat::CommunicateData
//
// Purpose:
// Communicate the data to the owning processors via non blocking send/recv.
//
// Arguments:
// dim Dimension of the variable
// shareMatrix Matrix with share data.
// array Array of dynamic arrays for storing bined data.
// var Input data variables.
// ids IDs for the variables.
// myVarsPtr Upon exit, this points to the next location in vars where data
// can be stored.
// myIdsPtr Upon exit, this points to the next location in vars where data
// can be stored.
//
// Programmer: Dave Pugmire
// Creation: Mon Dec 3 16:17:45 EST 2007
//
// Modifications:
//
// Dave Pugmire, Thu Dec 20 16:23:48 EST 2007
// Use MPI_Waitsome instead of MPI_Waitall. Process things as they become ready.
//
// Jeremy Meredith, Thu Aug 7 13:58:44 EDT 2008
// MPI_Request does not have a well-specified type by the MPI spec.
// I removed its use from within a printf, since it was debugging code.
//
// ****************************************************************************
void
avtGTCFileFormat::CommunicateData( int dim, int *shareMatrix, parallelBuffer **array,
float **myVarsPtr, float **myIdsPtr )
{
int err;
// Everyone knows what to expect now. Do the send/recvs via nonblocking send/recv.
std::vector<MPI_Request> requests;
std::vector<int> requestRank;
int numSends = 0;
for ( int i = 0; i < nProcs; i++ )
{
MPI_Request req;
int sz = (dim+1) * array[i]->Size();
if ( sz == 0 )
continue;
err = MPI_Isend( array[i]->Get(0), sz, MPI_FLOAT, i, rank, VISIT_MPI_COMM, &req );
if ( err != MPI_SUCCESS )
EXCEPTION1(InvalidDBTypeException, "GTC Reader: MPI_Isend() failure." );
char str[512]; sprintf( str, "%d: sending to %d [%d]\n", rank, i, sz );
debug5 << str;
requests.push_back( req );
requestRank.push_back( i );
numSends++;
}
//Do the recvs.
float **bufs = new float*[nProcs];
float *myVars = *myVarsPtr, *myIds = *myIdsPtr;
int numRecvs = 0;
for ( int i = 0; i < nProcs; i++ )
{
int sz = (dim+1) * shareMatrix[i*nProcs + rank];
bufs[i] = NULL;
if ( i == rank || sz == 0 )
continue;
bufs[i] = new float[sz];
MPI_Request req;
err = MPI_Irecv( bufs[i], sz, MPI_FLOAT, i, i, VISIT_MPI_COMM, &req );
if ( err != MPI_SUCCESS )
EXCEPTION1(InvalidDBTypeException, "GTC Reader: MPI_Irecv() failure." );
char str[512]; sprintf( str, "%d: receiving from %d [%d]\n", rank, i, sz );
debug5 << str;
requests.push_back( req );
requestRank.push_back( i );
numRecvs++;
}
// Process the send/recvs as they complete.
int numRequests = numSends+numRecvs;
if ( numRequests > 0 )
{
int num, nTotalReq = numRequests, *idxArray = new int[numRequests];
MPI_Status *statusArray = new MPI_Status[numRequests];
while ( numRequests > 0 )
{
err = MPI_Waitsome( nTotalReq, &requests[0], &num, idxArray, statusArray );
if ( err != MPI_SUCCESS || num == MPI_UNDEFINED )
EXCEPTION1(InvalidDBTypeException, "GTC Reader: MPI_Waitany() failure." );
debug5 << "Waitsome=: " << num << endl;
for ( int i = 0; i < num; i++ )
{
int idx = idxArray[i];
if ( idx < numSends )
{
//Nothing to do for send.
}
else
{
int src = requestRank[idx];
int cnt = shareMatrix[src*nProcs + rank];
//Copy ID, var.
float *bufPtr = bufs[src];
for ( int j = 0; j < cnt; j++ )
{
*myIds++ = *bufPtr++; // ID
for ( int k = 0; k < dim; k++ )
*myVars++ = *bufPtr++;
}
delete [] bufs[src];
bufs[src] = NULL;
}
requests[idx] = MPI_REQUEST_NULL;
}
numRequests -= num;
}
delete [] idxArray;
delete [] statusArray;
}
//Cleanup.
delete [] bufs;
*myIdsPtr = myIds;
*myVarsPtr = myVars;
}
/*
* schedule thread will manage the xml file participate work, if there is an idle slave, we transfer
* the xml file part we just get from pre-scan thread to the idle slave.
* */
void* schedule(void* c_arg){
#ifdef MASTER_TIME_TEST
struct timeval tim;
gettimeofday(&tim,NULL);
double start = tim.tv_sec + (tim.tv_usec/1000000.0);
#endif
MPI_Request request[3];
int indices[slaves_num],num_completed;
int j;
for(j=0;j<slaves_num;j++)
request[j] = MPI_REQUEST_NULL;
while(1){
if(!multi_read_over() || !task_queue_is_empty()){
parse_task* task = get_task();
#ifndef READ_TEST
tag_info* host_tags_info = task->info;
int tag_num = task->tag_num;
// change the struct Text and tag_info to bytes for transferring
char* bytes_of_tags_info = (char*)host_tags_info;
int dest = -1;
while( dest <= 0){
int i;
for(i=1;i<=slaves_num;i++){
if (idle_node[i]== 1) {
idle_node[i] = 0;
dest = i;
break;
}
}
if(dest <= 0){
for(i=1;i<=slaves_num;i++)
MPI_Irecv(&idle_node[i],1,MPI_INT,i,MSG_IDLE,MPI_COMM_WORLD,&request[i-1]);
MPI_Waitsome(slaves_num,request,&num_completed,indices,MPI_STATUSES_IGNORE);
}
}
idle_node[dest] = 0;//indicates this slave is busy now
// send partial file and tag information
if(bytes_of_tags_info == NULL)
printf("ERROR : tags info is null \n");
MPI_Ssend(bytes_of_tags_info,tag_num*sizeof(tag_info),MPI_CHAR,dest,MSG_SEND_TAG_INFO,MPI_COMM_WORLD);
free(task);
// printf("%d,%d\n",multi_read_over(),task_queue_is_empty());
#endif
}else{
#ifdef MASTER_TIME_TEST
gettimeofday(&tim,NULL);
double stop = tim.tv_sec + (tim.tv_usec/1000000.0);
double dur = stop - start;
printf(" master time report\n%ld--(%f,%f,%f)\n",task_counter,start,stop,dur);
#endif
#ifdef QUERY_TEST
printf(" please input a tag name: \n");
char s[31];
scanf("%30s",s);
int sum_count = 0;
if(strlen(s)!=0){
array* condition = (array*)malloc(sizeof(array));
array_init(condition);
parse_query(s,condition);
array** results = (array*)malloc(sizeof(array*)*(condition->size));
for(j=0;j<condition->size;j++){
char* s = ((char**)(condition->data))[j];
results[j] = query(s);
}
printf("qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq\n");
}
#endif
#ifndef QUERY_TEST
int i;
char end;
for(i=1;i<=slaves_num;i++)
MPI_Send(&end,0,MPI_CHAR,i,MSG_EXIT,MPI_COMM_WORLD);
return NULL;
#endif
}
}
printf("master exit\n");
return NULL;
}
static PetscErrorCode VecAssemblyEnd_MPI_BTS(Vec X)
{
Vec_MPI *x = (Vec_MPI*)X->data;
PetscInt bs = X->map->bs;
PetscMPIInt npending,*some_indices,r;
MPI_Status *some_statuses;
PetscScalar *xarray;
PetscErrorCode ierr;
VecAssemblyFrame *frame;
PetscFunctionBegin;
if (X->stash.donotstash) {
X->stash.insertmode = NOT_SET_VALUES;
X->bstash.insertmode = NOT_SET_VALUES;
PetscFunctionReturn(0);
}
ierr = VecGetArray(X,&xarray);CHKERRQ(ierr);
ierr = PetscSegBufferExtractInPlace(x->segrecvframe,&frame);CHKERRQ(ierr);
ierr = PetscMalloc2(4*x->nrecvranks,&some_indices,x->use_status?4*x->nrecvranks:0,&some_statuses);CHKERRQ(ierr);
for (r=0,npending=0; r<x->nrecvranks; r++) npending += frame[r].pendings + frame[r].pendingb;
while (npending>0) {
PetscMPIInt ndone,ii;
/* Filling MPI_Status fields requires some resources from the MPI library. We skip it on the first assembly, or
* when VEC_SUBSET_OFF_PROC_ENTRIES has not been set, because we could exchange exact sizes in the initial
* rendezvous. When the rendezvous is elided, however, we use MPI_Status to get actual message lengths, so that
* subsequent assembly can set a proper subset of the values. */
ierr = MPI_Waitsome(4*x->nrecvranks,x->recvreqs,&ndone,some_indices,x->use_status?some_statuses:MPI_STATUSES_IGNORE);CHKERRQ(ierr);
for (ii=0; ii<ndone; ii++) {
PetscInt i = some_indices[ii]/4,j,k;
InsertMode imode = (InsertMode)x->recvhdr[i].insertmode;
PetscInt *recvint;
PetscScalar *recvscalar;
PetscBool intmsg = (PetscBool)(some_indices[ii]%2 == 0);
PetscBool blockmsg = (PetscBool)((some_indices[ii]%4)/2 == 1);
npending--;
if (!blockmsg) { /* Scalar stash */
PetscMPIInt count;
if (--frame[i].pendings > 0) continue;
if (x->use_status) {
ierr = MPI_Get_count(&some_statuses[ii],intmsg ? MPIU_INT : MPIU_SCALAR,&count);CHKERRQ(ierr);
} else count = x->recvhdr[i].count;
for (j=0,recvint=frame[i].ints,recvscalar=frame[i].scalars; j<count; j++,recvint++) {
PetscInt loc = *recvint - X->map->rstart;
if (*recvint < X->map->rstart || X->map->rend <= *recvint) SETERRQ3(PETSC_COMM_SELF,PETSC_ERR_PLIB,"Received vector entry %D out of local range [%D,%D)]",*recvint,X->map->rstart,X->map->rend);
switch (imode) {
case ADD_VALUES:
xarray[loc] += *recvscalar++;
break;
case INSERT_VALUES:
xarray[loc] = *recvscalar++;
break;
default: SETERRQ1(PETSC_COMM_SELF,PETSC_ERR_SUP,"Insert mode not supported 0x%x",imode);
}
}
} else { /* Block stash */
PetscMPIInt count;
if (--frame[i].pendingb > 0) continue;
if (x->use_status) {
ierr = MPI_Get_count(&some_statuses[ii],intmsg ? MPIU_INT : MPIU_SCALAR,&count);CHKERRQ(ierr);
if (!intmsg) count /= bs; /* Convert from number of scalars to number of blocks */
} else count = x->recvhdr[i].bcount;
for (j=0,recvint=frame[i].intb,recvscalar=frame[i].scalarb; j<count; j++,recvint++) {
PetscInt loc = (*recvint)*bs - X->map->rstart;
switch (imode) {
case ADD_VALUES:
for (k=loc; k<loc+bs; k++) xarray[k] += *recvscalar++;
break;
case INSERT_VALUES:
for (k=loc; k<loc+bs; k++) xarray[k] = *recvscalar++;
break;
default: SETERRQ1(PETSC_COMM_SELF,PETSC_ERR_SUP,"Insert mode not supported 0x%x",imode);
}
}
}
}
}
ierr = VecRestoreArray(X,&xarray);CHKERRQ(ierr);
ierr = MPI_Waitall(4*x->nsendranks,x->sendreqs,MPI_STATUSES_IGNORE);CHKERRQ(ierr);
ierr = PetscFree2(some_indices,some_statuses);CHKERRQ(ierr);
if (x->assembly_subset) {
void *dummy; /* reset segbuffers */
ierr = PetscSegBufferExtractInPlace(x->segrecvint,&dummy);CHKERRQ(ierr);
ierr = PetscSegBufferExtractInPlace(x->segrecvscalar,&dummy);CHKERRQ(ierr);
} else {
ierr = VecAssemblyReset_MPI(X);CHKERRQ(ierr);
}
X->stash.insertmode = NOT_SET_VALUES;
X->bstash.insertmode = NOT_SET_VALUES;
ierr = VecStashScatterEnd_Private(&X->stash);CHKERRQ(ierr);
ierr = VecStashScatterEnd_Private(&X->bstash);CHKERRQ(ierr);
PetscFunctionReturn(0);
}
static void test_pair (void)
{
int prev, next, count, tag, index, i, outcount, indices[2];
int rank, size, flag, ierr, reqcount;
double send_buf[TEST_SIZE], recv_buf[TEST_SIZE];
double buffered_send_buf[TEST_SIZE * 2 + MPI_BSEND_OVERHEAD]; /* factor of two is based on guessing - only dynamic allocation would be safe */
void *buffer;
MPI_Status statuses[2];
MPI_Status status;
MPI_Request requests[2];
MPI_Comm dupcom, intercom;
#ifdef V_T
struct _VT_FuncFrameHandle {
char *name;
int func;
int frame;
};
typedef struct _VT_FuncFrameHandle VT_FuncFrameHandle_t;
VT_FuncFrameHandle_t normal_sends,
buffered_sends,
buffered_persistent_sends,
ready_sends,
sync_sends,
nblock_sends,
nblock_rsends,
nblock_ssends,
pers_sends,
pers_rsends,
pers_ssends,
sendrecv,
sendrecv_repl,
intercomm;
int classid;
VT_classdef( "Application:test_pair", &classid );
#define VT_REGION_DEF( _name, _nameframe, _class ) \
(_nameframe).name=_name; \
VT_funcdef( (_nameframe).name, _class, &((_nameframe).func) );
#define VT_BEGIN_REGION( _nameframe ) \
LOCDEF(); \
VT_begin( (_nameframe).func )
#define VT_END_REGION( _nameframe ) \
LOCDEF(); VT_end( (_nameframe).func )
#else
#define VT_REGION_DEF( _name, _nameframe, _class )
#define VT_BEGIN_REGION( _nameframe )
#define VT_END_REGION( _nameframe )
#endif
ierr = MPI_Comm_rank(MPI_COMM_WORLD, &rank);
ierr = MPI_Comm_size(MPI_COMM_WORLD, &size);
if ( size < 2 ) {
if ( rank == 0 ) {
printf("Program needs to be run on at least 2 processes.\n");
}
ierr = MPI_Abort( MPI_COMM_WORLD, 66 );
}
ierr = MPI_Comm_dup(MPI_COMM_WORLD, &dupcom);
if ( rank >= 2 ) {
/* printf( "%d Calling finalize.\n", rank ); */
ierr = MPI_Finalize( );
exit(0);
}
next = rank + 1;
if (next >= 2)
next = 0;
prev = rank - 1;
if (prev < 0)
prev = 1;
VT_REGION_DEF( "Normal_Sends", normal_sends, classid );
VT_REGION_DEF( "Buffered_Sends", buffered_sends, classid );
VT_REGION_DEF( "Buffered_Persistent_Sends", buffered_persistent_sends, classid );
VT_REGION_DEF( "Ready_Sends", ready_sends, classid );
VT_REGION_DEF( "Sync_Sends", sync_sends, classid );
VT_REGION_DEF( "nblock_Sends", nblock_sends, classid );
VT_REGION_DEF( "nblock_RSends", nblock_rsends, classid );
VT_REGION_DEF( "nblock_SSends", nblock_ssends, classid );
VT_REGION_DEF( "Pers_Sends", pers_sends, classid );
VT_REGION_DEF( "Pers_RSends", pers_rsends, classid );
VT_REGION_DEF( "Pers_SSends", pers_ssends, classid );
VT_REGION_DEF( "SendRecv", sendrecv, classid );
VT_REGION_DEF( "SendRevc_Repl", sendrecv_repl, classid );
VT_REGION_DEF( "InterComm", intercomm, classid );
/*
* Normal sends
*/
VT_BEGIN_REGION( normal_sends );
if (rank == 0)
printf ("Send\n");
tag = 0x100;
count = TEST_SIZE / 5;
clear_test_data(recv_buf,TEST_SIZE);
if (rank == 0) {
init_test_data(send_buf,TEST_SIZE,0);
LOCDEF();
MPI_Send(send_buf, count, MPI_DOUBLE, next, tag, MPI_COMM_WORLD);
MPI_Recv(recv_buf, TEST_SIZE, MPI_DOUBLE, MPI_ANY_SOURCE,
MPI_ANY_TAG, MPI_COMM_WORLD, &status);
msg_check(recv_buf, prev, tag, count, &status, TEST_SIZE, "send and recv");
}
else {
LOCDEF();
MPI_Recv(recv_buf, TEST_SIZE, MPI_DOUBLE,MPI_ANY_SOURCE, MPI_ANY_TAG,
MPI_COMM_WORLD, &status);
msg_check( recv_buf, prev, tag, count, &status, TEST_SIZE,"send and recv");
init_test_data(recv_buf,TEST_SIZE,1);
MPI_Send(recv_buf, count, MPI_DOUBLE, next, tag, MPI_COMM_WORLD);
}
VT_END_REGION( normal_sends );
/*
* Buffered sends
*/
VT_BEGIN_REGION( buffered_sends );
if (rank == 0)
printf ("Buffered Send\n");
tag = 138;
count = TEST_SIZE / 5;
clear_test_data(recv_buf,TEST_SIZE);
if (rank == 0) {
init_test_data(send_buf,TEST_SIZE,0);
LOCDEF();
MPI_Buffer_attach(buffered_send_buf, sizeof(buffered_send_buf));
MPI_Bsend(send_buf, count, MPI_DOUBLE, next, tag, MPI_COMM_WORLD);
MPI_Buffer_detach(&buffer, &size);
if(buffer != buffered_send_buf || size != sizeof(buffered_send_buf)) {
printf ("[%d] Unexpected buffer returned by MPI_Buffer_detach(): %p/%d != %p/%d\n", rank, buffer, size, buffered_send_buf, (int)sizeof(buffered_send_buf));
MPI_Abort(MPI_COMM_WORLD, 201);
}
MPI_Recv(recv_buf, TEST_SIZE, MPI_DOUBLE, MPI_ANY_SOURCE,
MPI_ANY_TAG, MPI_COMM_WORLD, &status);
msg_check(recv_buf, prev, tag, count, &status, TEST_SIZE, "send and recv");
}
else {
LOCDEF();
MPI_Recv(recv_buf, TEST_SIZE, MPI_DOUBLE,MPI_ANY_SOURCE, MPI_ANY_TAG,
MPI_COMM_WORLD, &status);
msg_check( recv_buf, prev, tag, count, &status, TEST_SIZE,"send and recv");
init_test_data(recv_buf,TEST_SIZE,1);
MPI_Send(recv_buf, count, MPI_DOUBLE, next, tag, MPI_COMM_WORLD);
}
VT_END_REGION( buffered_sends );
/*
* Buffered sends
*/
VT_BEGIN_REGION( buffered_persistent_sends );
if (rank == 0)
printf ("Buffered Persistent Send\n");
tag = 238;
count = TEST_SIZE / 5;
clear_test_data(recv_buf,TEST_SIZE);
if (rank == 0) {
init_test_data(send_buf,TEST_SIZE,0);
LOCDEF();
MPI_Buffer_attach(buffered_send_buf, sizeof(buffered_send_buf));
MPI_Bsend_init(send_buf, count, MPI_DOUBLE, next, tag, MPI_COMM_WORLD, requests);
MPI_Start(requests);
MPI_Wait(requests, statuses);
MPI_Request_free(requests);
MPI_Buffer_detach(&buffer, &size);
if(buffer != buffered_send_buf || size != sizeof(buffered_send_buf)) {
printf ("[%d] Unexpected buffer returned by MPI_Buffer_detach(): %p/%d != %p/%d\n", rank, buffer, size, buffered_send_buf, (int)sizeof(buffered_send_buf));
MPI_Abort(MPI_COMM_WORLD, 201);
}
MPI_Recv(recv_buf, TEST_SIZE, MPI_DOUBLE, MPI_ANY_SOURCE,
MPI_ANY_TAG, MPI_COMM_WORLD, &status);
msg_check(recv_buf, prev, tag, count, &status, TEST_SIZE, "send and recv");
}
else {
LOCDEF();
MPI_Recv(recv_buf, TEST_SIZE, MPI_DOUBLE,MPI_ANY_SOURCE, MPI_ANY_TAG,
MPI_COMM_WORLD, &status);
msg_check( recv_buf, prev, tag, count, &status, TEST_SIZE,"send and recv");
init_test_data(recv_buf,TEST_SIZE,1);
MPI_Send(recv_buf, count, MPI_DOUBLE, next, tag, MPI_COMM_WORLD);
}
VT_END_REGION( buffered_persistent_sends );
/*
* Ready sends. Note that we must insure that the receive is posted
* before the rsend; this requires using Irecv.
*/
VT_BEGIN_REGION( ready_sends );
if (rank == 0)
printf ("Rsend\n");
tag = 1456;
count = TEST_SIZE / 3;
clear_test_data(recv_buf,TEST_SIZE);
if (rank == 0) {
init_test_data(send_buf,TEST_SIZE,0);
MPI_Recv(MPI_BOTTOM, 0, MPI_INT, next, tag, MPI_COMM_WORLD, &status);
MPI_Rsend(send_buf, count, MPI_DOUBLE, next, tag, MPI_COMM_WORLD);
MPI_Probe(MPI_ANY_SOURCE, tag, MPI_COMM_WORLD, &status);
if (status.MPI_SOURCE != prev)
printf ("Incorrect src, expected %d, got %d\n",prev, status.MPI_SOURCE);
if (status.MPI_TAG != tag)
printf ("Incorrect tag, expected %d, got %d\n",tag, status.MPI_TAG);
MPI_Get_count(&status, MPI_DOUBLE, &i);
if (i != count)
printf ("Incorrect count, expected %d, got %d\n",count,i);
MPI_Recv(recv_buf, TEST_SIZE, MPI_DOUBLE, MPI_ANY_SOURCE, MPI_ANY_TAG,
MPI_COMM_WORLD, &status);
msg_check( recv_buf, prev, tag, count, &status, TEST_SIZE,
"rsend and recv");
}
else {
MPI_Irecv(recv_buf, TEST_SIZE, MPI_DOUBLE, MPI_ANY_SOURCE, MPI_ANY_TAG,
MPI_COMM_WORLD, requests);
MPI_Send( MPI_BOTTOM, 0, MPI_INT, next, tag, MPI_COMM_WORLD);
MPI_Wait(requests, &status);
msg_check( recv_buf, prev, tag, count, &status, TEST_SIZE,
"rsend and recv");
init_test_data(recv_buf,TEST_SIZE,1);
MPI_Send(recv_buf, count, MPI_DOUBLE, next, tag, MPI_COMM_WORLD);
}
VT_END_REGION( ready_sends );
/*
* Synchronous sends
*/
VT_BEGIN_REGION( sync_sends );
if (rank == 0)
printf ("Ssend\n");
tag = 1789;
count = TEST_SIZE / 3;
clear_test_data(recv_buf,TEST_SIZE);
if (rank == 0) {
init_test_data(send_buf,TEST_SIZE,0);
MPI_Iprobe(MPI_ANY_SOURCE, tag, MPI_COMM_WORLD, &flag, &status);
if (flag)
printf ("Iprobe succeeded! source %d, tag %d\n",status.MPI_SOURCE,
status.MPI_TAG);
MPI_Ssend(send_buf, count, MPI_DOUBLE, next, tag, MPI_COMM_WORLD);
while (!flag)
MPI_Iprobe(MPI_ANY_SOURCE, tag, MPI_COMM_WORLD, &flag, &status);
if (status.MPI_SOURCE != prev)
printf ("Incorrect src, expected %d, got %d\n",prev, status.MPI_SOURCE);
if (status.MPI_TAG != tag)
printf ("Incorrect tag, expected %d, got %d\n",tag, status.MPI_TAG);
MPI_Get_count(&status, MPI_DOUBLE, &i);
if (i != count)
printf ("Incorrect count, expected %d, got %d\n",count,i);
MPI_Recv(recv_buf, TEST_SIZE, MPI_DOUBLE, MPI_ANY_SOURCE, MPI_ANY_TAG,
MPI_COMM_WORLD, &status);
msg_check( recv_buf, prev, tag, count, &status, TEST_SIZE, "ssend and recv");
}
else {
MPI_Recv(recv_buf, TEST_SIZE, MPI_DOUBLE, MPI_ANY_SOURCE, MPI_ANY_TAG,
MPI_COMM_WORLD, &status);
msg_check( recv_buf, prev, tag, count, &status, TEST_SIZE, "ssend and recv"); init_test_data(recv_buf,TEST_SIZE,1);
MPI_Ssend(recv_buf, count, MPI_DOUBLE, next, tag, MPI_COMM_WORLD);
}
VT_END_REGION( sync_sends );
/*
* Nonblocking normal sends
*/
VT_BEGIN_REGION( nblock_sends );
if (rank == 0)
printf ("Isend\n");
tag = 2123;
count = TEST_SIZE / 5;
clear_test_data(recv_buf,TEST_SIZE);
if (rank == 0) {
MPI_Irecv(recv_buf, TEST_SIZE, MPI_DOUBLE,MPI_ANY_SOURCE, MPI_ANY_TAG,
MPI_COMM_WORLD, requests);
init_test_data(send_buf,TEST_SIZE,0);
MPI_Isend(send_buf, count, MPI_DOUBLE, next, tag, MPI_COMM_WORLD,
(requests+1));
MPI_Waitall(2, requests, statuses);
rq_check( requests, 2, "isend and irecv" );
msg_check(recv_buf,prev,tag,count,statuses, TEST_SIZE,"isend and irecv");
}
else {
MPI_Recv(recv_buf, TEST_SIZE, MPI_DOUBLE,MPI_ANY_SOURCE, MPI_ANY_TAG,
MPI_COMM_WORLD, &status);
msg_check(recv_buf,prev,tag,count,&status, TEST_SIZE,"isend and irecv"); init_test_data(recv_buf,TEST_SIZE,1);
MPI_Isend(recv_buf, count, MPI_DOUBLE, next, tag,MPI_COMM_WORLD,
(requests));
MPI_Wait((requests), &status);
rq_check(requests, 1, "isend (and recv)");
}
VT_END_REGION( nblock_sends );
/*
* Nonblocking ready sends
*/
VT_BEGIN_REGION( nblock_rsends );
if (rank == 0)
printf ("Irsend\n");
tag = 2456;
count = TEST_SIZE / 3;
clear_test_data(recv_buf,TEST_SIZE);
if (rank == 0) {
MPI_Irecv(recv_buf, TEST_SIZE, MPI_DOUBLE, MPI_ANY_SOURCE, MPI_ANY_TAG,
MPI_COMM_WORLD, requests);
init_test_data(send_buf,TEST_SIZE,0);
MPI_Sendrecv( MPI_BOTTOM, 0, MPI_INT, next, 0,
MPI_BOTTOM, 0, MPI_INT, next, 0,
dupcom, &status);
MPI_Irsend(send_buf, count, MPI_DOUBLE, next, tag, MPI_COMM_WORLD,
(requests+1));
reqcount = 0;
while (reqcount != 2) {
MPI_Waitany( 2, requests, &index, statuses);
if( index == 0 ) {
memcpy( &status, statuses, sizeof(status) );
}
reqcount++;
}
rq_check( requests, 1, "irsend and irecv");
msg_check(recv_buf,prev,tag,count,&status, TEST_SIZE,"irsend and irecv");
}
else {
MPI_Irecv(recv_buf, TEST_SIZE, MPI_DOUBLE, MPI_ANY_SOURCE, MPI_ANY_TAG,
MPI_COMM_WORLD, requests);
MPI_Sendrecv( MPI_BOTTOM, 0, MPI_INT, next, 0,
MPI_BOTTOM, 0, MPI_INT, next, 0,
dupcom, &status);
flag = 0;
while (!flag)
MPI_Test(requests, &flag, &status);
rq_check( requests, 1, "irsend and irecv (test)");
msg_check( recv_buf, prev, tag, count, &status, TEST_SIZE,
"irsend and irecv"); init_test_data(recv_buf,TEST_SIZE,1);
MPI_Irsend(recv_buf, count, MPI_DOUBLE, next, tag,
MPI_COMM_WORLD, requests);
MPI_Waitall(1, requests, statuses);
rq_check( requests, 1, "irsend and irecv");
}
VT_END_REGION( nblock_rsends );
/*
* Nonblocking synchronous sends
*/
VT_BEGIN_REGION( nblock_ssends );
if (rank == 0)
printf ("Issend\n");
tag = 2789;
count = TEST_SIZE / 3;
clear_test_data(recv_buf,TEST_SIZE);
if (rank == 0) {
MPI_Irecv(recv_buf, TEST_SIZE, MPI_DOUBLE, MPI_ANY_SOURCE, MPI_ANY_TAG,
MPI_COMM_WORLD, requests );
init_test_data(send_buf,TEST_SIZE,0);
MPI_Issend(send_buf, count, MPI_DOUBLE, next, tag, MPI_COMM_WORLD,
(requests+1));
flag = 0;
while (!flag)
MPI_Testall(2, requests, &flag, statuses);
rq_check( requests, 2, "issend and irecv (testall)");
msg_check( recv_buf, prev, tag, count, statuses, TEST_SIZE,
"issend and recv");
}
else {
MPI_Recv(recv_buf, TEST_SIZE, MPI_DOUBLE, MPI_ANY_SOURCE, MPI_ANY_TAG,
MPI_COMM_WORLD, &status);
msg_check( recv_buf, prev, tag, count, &status, TEST_SIZE,
"issend and recv"); init_test_data(recv_buf,TEST_SIZE,1);
MPI_Issend(recv_buf, count, MPI_DOUBLE, next, tag, MPI_COMM_WORLD,requests);
flag = 0;
while (!flag)
MPI_Testany(1, requests, &index, &flag, statuses);
rq_check( requests, 1, "issend and recv (testany)");
}
VT_END_REGION( nblock_ssends );
/*
* Persistent normal sends
*/
VT_BEGIN_REGION( pers_sends );
if (rank == 0)
printf ("Send_init\n");
tag = 3123;
count = TEST_SIZE / 5;
clear_test_data(recv_buf,TEST_SIZE);
MPI_Send_init(send_buf, count, MPI_DOUBLE, next, tag,
MPI_COMM_WORLD, requests);
MPI_Recv_init(recv_buf, TEST_SIZE, MPI_DOUBLE,MPI_ANY_SOURCE, MPI_ANY_TAG,
MPI_COMM_WORLD, (requests+1));
if (rank == 0) {
init_test_data(send_buf,TEST_SIZE,0);
MPI_Startall(2, requests);
MPI_Waitall(2, requests, statuses);
msg_check( recv_buf, prev, tag, count, (statuses+1),
TEST_SIZE, "persistent send/recv");
}
else {
MPI_Start((requests+1));
MPI_Wait((requests+1), &status);
msg_check( recv_buf, prev, tag, count, &status, TEST_SIZE,
"persistent send/recv");
init_test_data(send_buf,TEST_SIZE,1);
MPI_Start(requests);
MPI_Wait(requests, &status);
}
MPI_Request_free(requests);
MPI_Request_free((requests+1));
VT_END_REGION( pers_sends );
/*
* Persistent ready sends
*/
VT_BEGIN_REGION( pers_rsends );
if (rank == 0)
printf ("Rsend_init\n");
tag = 3456;
count = TEST_SIZE / 3;
clear_test_data(recv_buf,TEST_SIZE);
MPI_Rsend_init(send_buf, count, MPI_DOUBLE, next, tag,
MPI_COMM_WORLD, requests);
MPI_Recv_init(recv_buf, TEST_SIZE, MPI_DOUBLE, MPI_ANY_SOURCE,
MPI_ANY_TAG, MPI_COMM_WORLD, (requests+1));
if (rank == 0) {
init_test_data(send_buf,TEST_SIZE,0); MPI_Barrier( MPI_COMM_WORLD );
MPI_Startall(2, requests);
reqcount = 0;
while (reqcount != 2) {
MPI_Waitsome(2, requests, &outcount, indices, statuses);
for (i=0; i<outcount; i++) {
if (indices[i] == 1) {
msg_check( recv_buf, prev, tag, count, (statuses+i),
TEST_SIZE, "waitsome");
}
reqcount++;
}
}
}
else {
MPI_Start((requests+1)); MPI_Barrier( MPI_COMM_WORLD );
flag = 0;
while (!flag)
MPI_Test((requests+1), &flag, &status);
msg_check( recv_buf, prev, tag, count, &status, TEST_SIZE, "test");
init_test_data(send_buf,TEST_SIZE,1);
MPI_Start(requests);
MPI_Wait(requests, &status);
}
MPI_Request_free(requests);
MPI_Request_free((requests+1));
VT_END_REGION( pers_rsends );
/*
* Persistent synchronous sends
*/
VT_BEGIN_REGION( pers_ssends );
if (rank == 0)
printf ("Ssend_init\n");
tag = 3789;
count = TEST_SIZE / 3;
clear_test_data(recv_buf,TEST_SIZE);
MPI_Ssend_init(send_buf, count, MPI_DOUBLE, next, tag,
MPI_COMM_WORLD, (requests+1));
MPI_Recv_init(recv_buf, TEST_SIZE, MPI_DOUBLE, MPI_ANY_SOURCE,
MPI_ANY_TAG, MPI_COMM_WORLD, requests);
if (rank == 0) {
init_test_data(send_buf,TEST_SIZE,0);
MPI_Startall(2, requests);
reqcount = 0;
while (reqcount != 2) {
MPI_Testsome(2, requests, &outcount, indices, statuses);
for (i=0; i<outcount; i++) {
if (indices[i] == 0) {
msg_check( recv_buf, prev, tag, count, (statuses+i),
TEST_SIZE, "testsome");
}
reqcount++;
}
}
}
else {
MPI_Start(requests);
flag = 0;
while (!flag)
MPI_Testany(1, requests, &index, &flag, statuses);
msg_check( recv_buf, prev, tag, count, statuses, TEST_SIZE, "testany" );
init_test_data(send_buf,TEST_SIZE,1);
MPI_Start((requests+1));
MPI_Wait((requests+1), &status);
}
MPI_Request_free(requests);
MPI_Request_free((requests+1));
VT_END_REGION( pers_ssends );
/*
* Send/receive.
*/
VT_BEGIN_REGION( sendrecv );
if (rank == 0)
printf ("Sendrecv\n");
tag = 4123;
count = TEST_SIZE / 5;
clear_test_data(recv_buf,TEST_SIZE);
if (rank == 0) {
init_test_data(send_buf,TEST_SIZE,0);
MPI_Sendrecv(send_buf, count, MPI_DOUBLE, next, tag,
recv_buf, count, MPI_DOUBLE, prev, tag,
MPI_COMM_WORLD, &status );
msg_check( recv_buf, prev, tag, count, &status, TEST_SIZE,
"sendrecv");
}
else {
MPI_Recv(recv_buf, TEST_SIZE, MPI_DOUBLE, MPI_ANY_SOURCE,
MPI_ANY_TAG, MPI_COMM_WORLD, &status);
msg_check( recv_buf, prev, tag, count, &status, TEST_SIZE,
"recv/send"); init_test_data(recv_buf,TEST_SIZE,1);
MPI_Send(recv_buf, count, MPI_DOUBLE, next, tag, MPI_COMM_WORLD);
}
VT_END_REGION( sendrecv );
#ifdef V_T
VT_flush();
#endif
/*
* Send/receive replace.
*/
VT_BEGIN_REGION( sendrecv_repl );
if (rank == 0)
printf ("Sendrecv_replace\n");
tag = 4456;
count = TEST_SIZE / 3;
if (rank == 0) {
init_test_data(recv_buf, TEST_SIZE,0);
for (i=count; i< TEST_SIZE; i++)
recv_buf[i] = 0.0;
MPI_Sendrecv_replace(recv_buf, count, MPI_DOUBLE,
next, tag, prev, tag, MPI_COMM_WORLD, &status);
msg_check( recv_buf, prev, tag, count, &status, TEST_SIZE,
"sendrecvreplace");
}
else {
clear_test_data(recv_buf,TEST_SIZE);
MPI_Recv(recv_buf, TEST_SIZE, MPI_DOUBLE, MPI_ANY_SOURCE,
MPI_ANY_TAG, MPI_COMM_WORLD, &status);
msg_check( recv_buf, prev, tag, count, &status, TEST_SIZE,
"recv/send for replace"); init_test_data(recv_buf,TEST_SIZE,1);
MPI_Send(recv_buf, count, MPI_DOUBLE, next, tag, MPI_COMM_WORLD);
}
VT_END_REGION( sendrecv_repl );
/*
* Send/Receive via inter-communicator
*/
VT_BEGIN_REGION( intercomm );
MPI_Intercomm_create(MPI_COMM_SELF, 0, MPI_COMM_WORLD, next, 1, &intercom);
if (rank == 0)
printf ("Send via inter-communicator\n");
tag = 4018;
count = TEST_SIZE / 5;
clear_test_data(recv_buf,TEST_SIZE);
if (rank == 0) {
init_test_data(send_buf,TEST_SIZE,0);
LOCDEF();
MPI_Send(send_buf, count, MPI_DOUBLE, 0, tag, intercom);
MPI_Recv(recv_buf, TEST_SIZE, MPI_DOUBLE, MPI_ANY_SOURCE,
MPI_ANY_TAG, intercom, &status);
msg_check(recv_buf, 0, tag, count, &status, TEST_SIZE, "send and recv via inter-communicator");
}
else if (rank == 1) {
LOCDEF();
MPI_Recv(recv_buf, TEST_SIZE, MPI_DOUBLE,MPI_ANY_SOURCE, MPI_ANY_TAG,
intercom, &status);
msg_check( recv_buf, 0, tag, count, &status, TEST_SIZE,"send and recv via inter-communicator");
init_test_data(recv_buf,TEST_SIZE,0);
MPI_Send(recv_buf, count, MPI_DOUBLE, 0, tag, intercom);
}
VT_END_REGION( normal_sends );
MPI_Comm_free(&intercom);
MPI_Comm_free(&dupcom);
}
int main( int argc, char **argv )
{
MPI_Request r1;
int size, rank;
int err = 0;
int partner, buf[10], flag, idx, index;
MPI_Status status;
MPI_Init( &argc, &argv );
MPI_Comm_size( MPI_COMM_WORLD, &size );
MPI_Comm_rank( MPI_COMM_WORLD, &rank );
if (size < 2) {
printf( "Cancel test requires at least 2 processes\n" );
MPI_Abort( MPI_COMM_WORLD, 1 );
}
/*
* Here is the test. First, we ensure an unsatisfied Irecv:
* process 0 process size-1
* Sendrecv Sendrecv
* Irecv ----
* Cancel ----
* Sendrecv Sendrecv
* Next, we confirm receipt before canceling
* Irecv Send
* Sendrecv Sendrecv
* Cancel
*/
if (rank == 0) {
partner = size - 1;
/* Cancel succeeds for wait/waitall */
MPI_Send_init( buf, 10, MPI_INT, partner, 0, MPI_COMM_WORLD, &r1 );
MPI_Sendrecv( MPI_BOTTOM, 0, MPI_INT, partner, 1,
MPI_BOTTOM, 0, MPI_INT, partner, 1,
MPI_COMM_WORLD, &status );
MPI_Start( &r1 );
MPI_Cancel( &r1 );
MPI_Wait( &r1, &status );
MPI_Test_cancelled( &status, &flag );
MPI_Sendrecv( MPI_BOTTOM, 0, MPI_INT, partner, 1,
MPI_BOTTOM, 0, MPI_INT, partner, 1,
MPI_COMM_WORLD, &status );
if (!flag) {
err++;
printf( "Cancel of a send failed where it should succeed (Wait).\n" );
}
MPI_Request_free( &r1 );
/* Cancel fails for test/testall */
buf[0] = 3;
MPI_Send_init( buf, 3, MPI_INT, partner, 2, MPI_COMM_WORLD, &r1 );
MPI_Start( &r1 );
MPI_Sendrecv( MPI_BOTTOM, 0, MPI_INT, partner, 1,
MPI_BOTTOM, 0, MPI_INT, partner, 1,
MPI_COMM_WORLD, &status );
MPI_Cancel( &r1 );
MPI_Test( &r1, &flag, &status );
MPI_Test_cancelled( &status, &flag );
if (flag) {
err++;
printf( "Cancel of a send succeeded where it shouldn't (Test).\n" );
}
MPI_Request_free( &r1 );
/* Cancel succeeds for waitany */
MPI_Send_init( buf, 10, MPI_INT, partner, 0, MPI_COMM_WORLD, &r1 );
MPI_Sendrecv( MPI_BOTTOM, 0, MPI_INT, partner, 1,
MPI_BOTTOM, 0, MPI_INT, partner, 1,
MPI_COMM_WORLD, &status );
MPI_Start( &r1 );
MPI_Cancel( &r1 );
MPI_Waitany( 1, &r1, &idx, &status );
MPI_Test_cancelled( &status, &flag );
MPI_Sendrecv( MPI_BOTTOM, 0, MPI_INT, partner, 1,
MPI_BOTTOM, 0, MPI_INT, partner, 1,
MPI_COMM_WORLD, &status );
if (!flag) {
err++;
printf( "Cancel of a send failed where it should succeed (Waitany).\n" );
}
MPI_Request_free( &r1 );
/* Cancel fails for testany */
buf[0] = 3;
MPI_Send_init( buf, 3, MPI_INT, partner, 2, MPI_COMM_WORLD, &r1 );
MPI_Start( &r1 );
MPI_Sendrecv( MPI_BOTTOM, 0, MPI_INT, partner, 1,
MPI_BOTTOM, 0, MPI_INT, partner, 1,
MPI_COMM_WORLD, &status );
MPI_Cancel( &r1 );
MPI_Testany( 1, &r1, &idx, &flag, &status );
MPI_Test_cancelled( &status, &flag );
if (flag) {
err++;
printf( "Cancel of a send succeeded where it shouldn't (Testany).\n" );
}
MPI_Request_free( &r1 );
/* Cancel succeeds for waitsome */
MPI_Send_init( buf, 10, MPI_INT, partner, 0, MPI_COMM_WORLD, &r1 );
MPI_Sendrecv( MPI_BOTTOM, 0, MPI_INT, partner, 1,
MPI_BOTTOM, 0, MPI_INT, partner, 1,
MPI_COMM_WORLD, &status );
MPI_Start( &r1 );
MPI_Cancel( &r1 );
MPI_Waitsome( 1, &r1, &idx, &index, &status );
MPI_Test_cancelled( &status, &flag );
MPI_Sendrecv( MPI_BOTTOM, 0, MPI_INT, partner, 1,
MPI_BOTTOM, 0, MPI_INT, partner, 1,
MPI_COMM_WORLD, &status );
if (!flag) {
err++;
printf( "Cancel of a send failed where it should succeed (Waitsome).\n" );
}
MPI_Request_free( &r1 );
/* Cancel fails for testsome*/
buf[0] = 3;
MPI_Send_init( buf, 3, MPI_INT, partner, 2, MPI_COMM_WORLD, &r1 );
MPI_Start( &r1 );
MPI_Sendrecv( MPI_BOTTOM, 0, MPI_INT, partner, 1,
MPI_BOTTOM, 0, MPI_INT, partner, 1,
MPI_COMM_WORLD, &status );
MPI_Cancel( &r1 );
MPI_Testsome( 1, &r1, &idx, &index, &status );
MPI_Test_cancelled( &status, &flag );
if (flag) {
err++;
printf( "Cancel of a send succeeded where it shouldn't (Testsome).\n" );
}
MPI_Request_free( &r1 );
if (err) {
printf( "Test failed with %d errors.\n", err );
}
else {
printf( "Test passed\n" );
}
}
else if (rank == size - 1) {
partner = 0;
/* Cancel succeeds for wait/waitall */
MPI_Sendrecv( MPI_BOTTOM, 0, MPI_INT, partner, 1,
MPI_BOTTOM, 0, MPI_INT, partner, 1,
MPI_COMM_WORLD, &status );
MPI_Sendrecv( MPI_BOTTOM, 0, MPI_INT, partner, 1,
MPI_BOTTOM, 0, MPI_INT, partner, 1,
MPI_COMM_WORLD, &status );
/* Cancel fails for test/testall */
buf[0] = -1;
MPI_Recv( buf, 3, MPI_INT, partner, 2, MPI_COMM_WORLD, &status );
MPI_Sendrecv( MPI_BOTTOM, 0, MPI_INT, partner, 1,
MPI_BOTTOM, 0, MPI_INT, partner, 1,
MPI_COMM_WORLD, &status );
if (buf[0] == -1) {
printf( "Receive buffer did not change even though cancel should not have suceeded! (Test).\n" );
}
/* Cancel succeeds for waitany */
MPI_Sendrecv( MPI_BOTTOM, 0, MPI_INT, partner, 1,
MPI_BOTTOM, 0, MPI_INT, partner, 1,
MPI_COMM_WORLD, &status );
MPI_Sendrecv( MPI_BOTTOM, 0, MPI_INT, partner, 1,
MPI_BOTTOM, 0, MPI_INT, partner, 1,
MPI_COMM_WORLD, &status );
/* Cancel fails for testany */
buf[0] = -1;
MPI_Recv( buf, 3, MPI_INT, partner, 2, MPI_COMM_WORLD, &status );
MPI_Sendrecv( MPI_BOTTOM, 0, MPI_INT, partner, 1,
MPI_BOTTOM, 0, MPI_INT, partner, 1,
MPI_COMM_WORLD, &status );
if (buf[0] == -1) {
printf( "Receive buffer did not change even though cancel should not have suceeded! (Testany).\n" );
}
/* Cancel succeeds for waitsome */
MPI_Sendrecv( MPI_BOTTOM, 0, MPI_INT, partner, 1,
MPI_BOTTOM, 0, MPI_INT, partner, 1,
MPI_COMM_WORLD, &status );
MPI_Sendrecv( MPI_BOTTOM, 0, MPI_INT, partner, 1,
MPI_BOTTOM, 0, MPI_INT, partner, 1,
MPI_COMM_WORLD, &status );
/* Cancel fails for testsome */
buf[0] = -1;
MPI_Recv( buf, 3, MPI_INT, partner, 2, MPI_COMM_WORLD, &status );
MPI_Sendrecv( MPI_BOTTOM, 0, MPI_INT, partner, 1,
MPI_BOTTOM, 0, MPI_INT, partner, 1,
MPI_COMM_WORLD, &status );
if (buf[0] == -1) {
printf( "Receive buffer did not change even though cancel should not have suceeded! (Test).\n" );
}
}
MPI_Finalize();
return 0;
}
void declareBindings (void)
{
/* === Point-to-point === */
void* buf;
int count;
MPI_Datatype datatype;
int dest;
int tag;
MPI_Comm comm;
MPI_Send (buf, count, datatype, dest, tag, comm); // L12
int source;
MPI_Status status;
MPI_Recv (buf, count, datatype, source, tag, comm, &status); // L15
MPI_Get_count (&status, datatype, &count);
MPI_Bsend (buf, count, datatype, dest, tag, comm);
MPI_Ssend (buf, count, datatype, dest, tag, comm);
MPI_Rsend (buf, count, datatype, dest, tag, comm);
void* buffer;
int size;
MPI_Buffer_attach (buffer, size); // L22
MPI_Buffer_detach (buffer, &size);
MPI_Request request;
MPI_Isend (buf, count, datatype, dest, tag, comm, &request); // L25
MPI_Ibsend (buf, count, datatype, dest, tag, comm, &request);
MPI_Issend (buf, count, datatype, dest, tag, comm, &request);
MPI_Irsend (buf, count, datatype, dest, tag, comm, &request);
MPI_Irecv (buf, count, datatype, source, tag, comm, &request);
MPI_Wait (&request, &status);
int flag;
MPI_Test (&request, &flag, &status); // L32
MPI_Request_free (&request);
MPI_Request* array_of_requests;
int index;
MPI_Waitany (count, array_of_requests, &index, &status); // L36
MPI_Testany (count, array_of_requests, &index, &flag, &status);
MPI_Status* array_of_statuses;
MPI_Waitall (count, array_of_requests, array_of_statuses); // L39
MPI_Testall (count, array_of_requests, &flag, array_of_statuses);
int incount;
int outcount;
int* array_of_indices;
MPI_Waitsome (incount, array_of_requests, &outcount, array_of_indices,
array_of_statuses); // L44--45
MPI_Testsome (incount, array_of_requests, &outcount, array_of_indices,
array_of_statuses); // L46--47
MPI_Iprobe (source, tag, comm, &flag, &status); // L48
MPI_Probe (source, tag, comm, &status);
MPI_Cancel (&request);
MPI_Test_cancelled (&status, &flag);
MPI_Send_init (buf, count, datatype, dest, tag, comm, &request);
MPI_Bsend_init (buf, count, datatype, dest, tag, comm, &request);
MPI_Ssend_init (buf, count, datatype, dest, tag, comm, &request);
MPI_Rsend_init (buf, count, datatype, dest, tag, comm, &request);
MPI_Recv_init (buf, count, datatype, source, tag, comm, &request);
MPI_Start (&request);
MPI_Startall (count, array_of_requests);
void* sendbuf;
int sendcount;
MPI_Datatype sendtype;
int sendtag;
void* recvbuf;
int recvcount;
MPI_Datatype recvtype;
MPI_Datatype recvtag;
MPI_Sendrecv (sendbuf, sendcount, sendtype, dest, sendtag,
recvbuf, recvcount, recvtype, source, recvtag,
comm, &status); // L67--69
MPI_Sendrecv_replace (buf, count, datatype, dest, sendtag, source, recvtag,
comm, &status); // L70--71
MPI_Datatype oldtype;
MPI_Datatype newtype;
MPI_Type_contiguous (count, oldtype, &newtype); // L74
int blocklength;
{
int stride;
MPI_Type_vector (count, blocklength, stride, oldtype, &newtype); // L78
}
{
MPI_Aint stride;
MPI_Type_hvector (count, blocklength, stride, oldtype, &newtype); // L82
}
int* array_of_blocklengths;
{
int* array_of_displacements;
MPI_Type_indexed (count, array_of_blocklengths, array_of_displacements,
oldtype, &newtype); // L87--88
}
{
MPI_Aint* array_of_displacements;
MPI_Type_hindexed (count, array_of_blocklengths, array_of_displacements,
oldtype, &newtype); // L92--93
MPI_Datatype* array_of_types;
MPI_Type_struct (count, array_of_blocklengths, array_of_displacements,
array_of_types, &newtype); // L95--96
}
void* location;
MPI_Aint address;
MPI_Address (location, &address); // L100
MPI_Aint extent;
MPI_Type_extent (datatype, &extent); // L102
MPI_Type_size (datatype, &size);
MPI_Aint displacement;
MPI_Type_lb (datatype, &displacement); // L105
MPI_Type_ub (datatype, &displacement);
MPI_Type_commit (&datatype);
MPI_Type_free (&datatype);
MPI_Get_elements (&status, datatype, &count);
void* inbuf;
void* outbuf;
int outsize;
int position;
MPI_Pack (inbuf, incount, datatype, outbuf, outsize, &position, comm); // L114
int insize;
MPI_Unpack (inbuf, insize, &position, outbuf, outcount, datatype,
comm); // L116--117
MPI_Pack_size (incount, datatype, comm, &size);
/* === Collectives === */
MPI_Barrier (comm); // L121
int root;
MPI_Bcast (buffer, count, datatype, root, comm); // L123
MPI_Gather (sendbuf, sendcount, sendtype, recvbuf, recvcount, recvtype,
root, comm); // L124--125
int* recvcounts;
int* displs;
MPI_Gatherv (sendbuf, sendcount, sendtype,
recvbuf, recvcounts, displs, recvtype,
root, comm); // L128--130
MPI_Scatter (sendbuf, sendcount, sendtype, recvbuf, recvcount, recvtype,
root, comm); // L131--132
int* sendcounts;
MPI_Scatterv (sendbuf, sendcounts, displs, sendtype,
recvbuf, recvcount, recvtype, root, comm); // L134--135
MPI_Allgather (sendbuf, sendcount, sendtype, recvbuf, recvcount, recvtype,
comm); // L136--137
MPI_Allgatherv (sendbuf, sendcount, sendtype,
recvbuf, recvcounts, displs, recvtype,
comm); // L138--140
MPI_Alltoall (sendbuf, sendcount, sendtype, recvbuf, recvcount, recvtype,
comm); // L141--142
int* sdispls;
int* rdispls;
MPI_Alltoallv (sendbuf, sendcounts, sdispls, sendtype,
recvbuf, recvcounts, rdispls, recvtype,
comm); // L145--147
MPI_Op op;
MPI_Reduce (sendbuf, recvbuf, count, datatype, op, root, comm); // L149
#if 0
MPI_User_function function;
int commute;
MPI_Op_create (function, commute, &op); // L153
#endif
MPI_Op_free (&op); // L155
MPI_Allreduce (sendbuf, recvbuf, count, datatype, op, comm);
MPI_Reduce_scatter (sendbuf, recvbuf, recvcounts, datatype, op, comm);
MPI_Scan (sendbuf, recvbuf, count, datatype, op, comm);
/* === Groups, contexts, and communicators === */
MPI_Group group;
MPI_Group_size (group, &size); // L162
int rank;
MPI_Group_rank (group, &rank); // L164
MPI_Group group1;
int n;
int* ranks1;
MPI_Group group2;
int* ranks2;
MPI_Group_translate_ranks (group1, n, ranks1, group2, ranks2); // L170
int result;
MPI_Group_compare (group1, group2, &result); // L172
MPI_Group newgroup;
MPI_Group_union (group1, group2, &newgroup); // L174
MPI_Group_intersection (group1, group2, &newgroup);
MPI_Group_difference (group1, group2, &newgroup);
int* ranks;
MPI_Group_incl (group, n, ranks, &newgroup); // L178
MPI_Group_excl (group, n, ranks, &newgroup);
extern int ranges[][3];
MPI_Group_range_incl (group, n, ranges, &newgroup); // L181
MPI_Group_range_excl (group, n, ranges, &newgroup);
MPI_Group_free (&group);
MPI_Comm_size (comm, &size);
MPI_Comm_rank (comm, &rank);
MPI_Comm comm1;
MPI_Comm comm2;
MPI_Comm_compare (comm1, comm2, &result);
MPI_Comm newcomm;
MPI_Comm_dup (comm, &newcomm);
MPI_Comm_create (comm, group, &newcomm);
int color;
int key;
MPI_Comm_split (comm, color, key, &newcomm); // L194
MPI_Comm_free (&comm);
MPI_Comm_test_inter (comm, &flag);
MPI_Comm_remote_size (comm, &size);
MPI_Comm_remote_group (comm, &group);
MPI_Comm local_comm;
int local_leader;
MPI_Comm peer_comm;
int remote_leader;
MPI_Comm newintercomm;
MPI_Intercomm_create (local_comm, local_leader, peer_comm, remote_leader, tag,
&newintercomm); // L204--205
MPI_Comm intercomm;
MPI_Comm newintracomm;
int high;
MPI_Intercomm_merge (intercomm, high, &newintracomm); // L209
int keyval;
#if 0
MPI_Copy_function copy_fn;
MPI_Delete_function delete_fn;
void* extra_state;
MPI_Keyval_create (copy_fn, delete_fn, &keyval, extra_state); // L215
#endif
MPI_Keyval_free (&keyval); // L217
void* attribute_val;
MPI_Attr_put (comm, keyval, attribute_val); // L219
MPI_Attr_get (comm, keyval, attribute_val, &flag);
MPI_Attr_delete (comm, keyval);
/* === Environmental inquiry === */
char* name;
int resultlen;
MPI_Get_processor_name (name, &resultlen); // L226
MPI_Errhandler errhandler;
#if 0
MPI_Handler_function function;
MPI_Errhandler_create (function, &errhandler); // L230
#endif
MPI_Errhandler_set (comm, errhandler); // L232
MPI_Errhandler_get (comm, &errhandler);
MPI_Errhandler_free (&errhandler);
int errorcode;
char* string;
MPI_Error_string (errorcode, string, &resultlen); // L237
int errorclass;
MPI_Error_class (errorcode, &errorclass); // L239
MPI_Wtime ();
MPI_Wtick ();
int argc;
char** argv;
MPI_Init (&argc, &argv); // L244
MPI_Finalize ();
MPI_Initialized (&flag);
MPI_Abort (comm, errorcode);
}
//---------------------------------------------------------------------------
//
// tests count-receive messages and posts payload-receive messages
// for those counts that arrived
//
// wf: wait_factor for nonblocking communication [0.0-1.0]
// RecvItemDtype: pointer to user-supplied function
// that takes a pointer to a counts message and
// creates an MPI datatype for the payloads message
//
void Neighborhoods::TestMessages(float wf,
MPI_Datatype* (*RecvItemDtype)(int *)) {
int npr; // number of received points from each process
list<ct_t>::iterator ct_it; // request list iterators
list<pl_t>::iterator pl_it; // request list iterators
int p; // process number
char *rcv_p = NULL; // one payload-receive
int i, j, k;
MPI_Request *reqs; // pending requests
MPI_Request *arr; // requests that arrived
MPI_Status *stats; // statuses for arrivals
int narr; // number of requests that arrived
MPI_Status stat;
int tot_narr = 0; // total number counts-receive messages arrived this round
int nreqs; // number of requests
if (!assign->GetStaticMode()) // override wf for dynamic repartitioning
wf = 1.0;
int min_arr = (int)(wf * pps.size()); // wait for this number of
// counts-receives
// to arrive in this round
if (recv_cts.size() > 0) {
reqs = new MPI_Request[recv_cts.size()];
arr = new MPI_Request[recv_cts.size()];
stats = new MPI_Status[recv_cts.size()];
// wait for enough items in count-receive list to arrive
while (tot_narr < min_arr) {
nreqs = 0;
for (ct_it = recv_cts.begin(); ct_it != recv_cts.end(); ct_it++) {
if (!ct_it->done)
reqs[nreqs++] = ct_it->req;
}
if (nreqs) {
MPI_Waitsome(nreqs, reqs, &narr, arr, stats);
// post payload-receive for counts that arrived
ct_it = recv_cts.begin();
j = 0;
for (i = 0; i < narr; i++) {
while (ct_it->done || j < arr[i]) {
if (!ct_it->done)
j++;
ct_it++;
}
ct_it->done = true;
ct_it->tag = stats[i].MPI_TAG;
// count number of items expected
npr = 0;
for (k = 0; k < (ct_it->c)[0]; k++)
{
npr += (ct_it->c)[k * (nhdr + 2) + 2];
}
// post payload-receive
if (npr > 0) { // at least one point is expected
p = ct_it->proc;
MPI_Datatype *itype = RecvItemDtype(&(ct_it->c)[0]);
MPI_Datatype *mtype = RecvMsgDtype(&(ct_it->c)[0], rcv_p, itype);
MPI_Recv(rcv_p, 1, *mtype, p, ct_it->tag + 1, comm, &stat);
pl_t pt; // one payload-receive message
pt.req = 0;
pt.done = true;
pt.proc = p;
pt.tag = ct_it->tag + 1; // matching tag for payload-receive
pt.p = rcv_p;
MPI_Aint lb, extent;
MPI_Type_get_extent(*itype, &lb, &extent);
pt.item_size = extent;
recv_pts.push_back(pt);
MPI_Type_free(mtype);
MPI_Type_free(itype);
delete mtype;
delete itype;
} // if npr > 0
ct_it++;
j++;
} // for i < narr
} // if nreqs
tot_narr += narr;
} // tot_narr < min_narr
delete[] reqs;
delete[] arr;
delete[] stats;
} // recv_cts.size() > 0
}
int
main (int argc, char **argv)
{
int nprocs = -1;
int rank = -1;
int comm = MPI_COMM_WORLD;
char processor_name[128];
int namelen = 128;
int buf[BUF_SIZE * 2];
int i, j, k, index, outcount, flag;
int indices[2];
MPI_Request aReq[2];
MPI_Status aStatus[2];
/* init */
MPI_Init (&argc, &argv);
MPI_Comm_size (comm, &nprocs);
MPI_Comm_rank (comm, &rank);
MPI_Get_processor_name (processor_name, &namelen);
printf ("(%d) is alive on %s\n", rank, processor_name);
fflush (stdout);
if (rank == 0) {
/* set up persistent sends... */
MPI_Send_init (&buf[0], BUF_SIZE, MPI_INT, 1, 0, comm, &aReq[0]);
MPI_Send_init (&buf[BUF_SIZE], BUF_SIZE, MPI_INT, 1, 1, comm, &aReq[1]);
/* initialize the send buffers */
for (i = 0; i < BUF_SIZE; i++) {
buf[i] = i;
buf[BUF_SIZE + i] = BUF_SIZE - 1 - i;
}
}
for (k = 0; k < 4; k++) {
if (rank == 1) {
/* zero out the receive buffers */
bzero (buf, sizeof(int) * BUF_SIZE * 2);
}
MPI_Barrier(MPI_COMM_WORLD);
if (rank == 0) {
/* start the persistent sends... */
if (k % 2) {
MPI_Startall (2, &aReq[0]);
}
else {
for (j = 0; j < 2; j++) {
MPI_Start (&aReq[j]);
}
}
/* complete the sends */
if (k < 2) {
/* use MPI_Waitany */
for (j = 0; j < 2; j++)
MPI_Waitany (2, aReq, &index, aStatus);
}
else {
/* use MPI_Waitsome */
j = 0;
while (j < 2) {
MPI_Waitsome (2, aReq, &outcount, indices, aStatus);
j += outcount;
}
}
}
else if (rank == 1) {
/* set up receives for all of the sends */
for (j = 0; j < 2; j++) {
MPI_Irecv (&buf[j * BUF_SIZE], BUF_SIZE,
MPI_INT, 0, j, comm, &aReq[j]);
}
/* complete all of the receives... */
MPI_Waitall (2, aReq, aStatus);
}
}
MPI_Barrier(MPI_COMM_WORLD);
if (rank == 0) {
/* free the persistent requests */
for (i = 0 ; i < 2; i++) {
MPI_Request_free (&aReq[i]);
}
}
MPI_Finalize ();
printf ("(%d) Finished normally\n", rank);
}
int main(int argc, char *argv[])
{
int myid, numprocs;
int x;
MPI_Init (&argc, &argv);
MPI_Comm_size (MPI_COMM_WORLD, &numprocs);
MPI_Comm_rank (MPI_COMM_WORLD, &myid);
if (myid == 0){
fprintf(stdout,"Please enter the value of x\n");
scanf("%d",&x);
printf("the value of x is %d\n", x);
}
if (numprocs == 1) {
/* trivial single CPU case */
int i, result = 0;
for (i=1; i<=x; i++)
result += i;
printf("one process and the final result is %d\n", result);
} else
if(myid == 0){
MPI_Request* reqs = (MPI_Request*)malloc((numprocs-1)*sizeof(MPI_Request));
MPI_Status* stat=(MPI_Status*)malloc((numprocs-1)*sizeof(MPI_Status));
int* indices = (int*)malloc((numprocs-1)*sizeof(int));
int* buf = (int*)malloc((numprocs-1)*sizeof(int));
int i, j, t, count, numRunningProcs, wkrid;
int result = 0;
for(i = 0; i < numprocs-1; i++)
{
/* send the problem size x to workers */
MPI_Send(&x, 1, MPI_INT, i+1, 10, MPI_COMM_WORLD);
/*open an unblocking socket and wait for return from that worker*/
MPI_Irecv(&buf[i], 1, MPI_INT, i+1, MPI_ANY_TAG, MPI_COMM_WORLD, &reqs[i]);
}
numRunningProcs = numprocs - 1;
/* while there is any job to be allocated or received */
while (numRunningProcs){
/* wait for partial results from workers*/
MPI_Waitsome(numprocs-1, reqs, &count, indices, stat);
numRunningProcs -= count;
for(i = 0; i < count; i++){
wkrid = stat[i].MPI_SOURCE;
t = stat[i].MPI_TAG;
j = indices[i];
result += buf[j];
printf("partial result %d received from worker id = %d with tag = %d\n", buf[j], wkrid, t);
}
}
printf("The final result is %d\n", result);
free(buf);
free(reqs);
free(indices);
free(stat);
}
else{
/* worker processes */
MPI_Status status;
int x, i, strt, fnsh;
int result = 0;
/* receive the size y from master */
MPI_Recv(&x, 1, MPI_INT, 0, 10, MPI_COMM_WORLD, &status);
strt = (myid-1) * x / (numprocs-1) + 1;
fnsh = myid * x / (numprocs-1);
for (i=strt; i<=fnsh; i++)
result += i;
/* send the result to master */
MPI_Send(&result, 1, MPI_INT, 0, myid, MPI_COMM_WORLD);
}
MPI_Finalize();
return 0;
}
int main( int argc, char* argv[] )
{
int myrank, nprocs;
int val, val2;
int idx, idx2[2];
int flag;
MPI_Request req;
MPI_Request req2[2];
MPI_Status stat;
MPI_Init( &argc, &argv );
MPI_Comm_rank( MPI_COMM_WORLD, &myrank );
MPI_Comm_size( MPI_COMM_WORLD, &nprocs );
if( nprocs<2 ) {
fprintf(stderr, "Need at least 2 procs to run this program\n");
MPI_Abort(MPI_COMM_WORLD, 1);
return 1;
}
/* MPI_STATUS_IGNORE in MPI_Recv */
switch(myrank) {
case 0:
MPI_Send( &val, 1, MPI_INTEGER, 1, 33, MPI_COMM_WORLD);
break;
case 1:
MPI_Recv( &val, 1, MPI_INTEGER, 0, 33, MPI_COMM_WORLD, MPI_STATUS_IGNORE );
break;
}
/* MPI_STATUS_IGNORE in MPI_Wait, MPI_Test */
switch(myrank) {
case 0:
MPI_Isend( &val, 1, MPI_INTEGER, 1, 34, MPI_COMM_WORLD, &req);
MPI_Test( &req, &flag, MPI_STATUS_IGNORE );
MPI_Wait( &req, MPI_STATUS_IGNORE );
break;
case 1:
MPI_Recv( &val, 1, MPI_INTEGER, 0, 34, MPI_COMM_WORLD, &stat );
break;
}
/* MPI_STATUS_IGNORE in MPI_Waitany, MPI_Testany */
switch(myrank) {
case 0:
MPI_Isend( &val, 1, MPI_INTEGER, 1, 35, MPI_COMM_WORLD, &(req2[0]));
MPI_Isend( &val2, 1, MPI_INTEGER, 1, 36, MPI_COMM_WORLD, &(req2[1]));
MPI_Testany( 2, req2, &idx, &flag, MPI_STATUS_IGNORE );
MPI_Waitany( 2, req2, &idx, MPI_STATUS_IGNORE );
break;
case 1:
MPI_Recv( &val, 1, MPI_INTEGER, 0, 35, MPI_COMM_WORLD, &stat );
MPI_Recv( &val2, 1, MPI_INTEGER, 0, 36, MPI_COMM_WORLD, &stat );
break;
}
/* MPI_STATUSES_IGNORE in MPI_Waitall, MPI_Testall */
switch(myrank) {
case 0:
MPI_Isend( &val, 1, MPI_INTEGER, 1, 35, MPI_COMM_WORLD, &(req2[0]));
MPI_Isend( &val2, 1, MPI_INTEGER, 1, 36, MPI_COMM_WORLD, &(req2[1]));
MPI_Testall( 2, req2, &flag, MPI_STATUSES_IGNORE );
MPI_Waitall( 2, req2, MPI_STATUSES_IGNORE );
break;
case 1:
MPI_Recv( &val, 1, MPI_INTEGER, 0, 35, MPI_COMM_WORLD, &stat );
MPI_Recv( &val2, 1, MPI_INTEGER, 0, 36, MPI_COMM_WORLD, &stat );
break;
}
/* MPI_STATUSES_IGNORE in MPI_Waitsome */
switch(myrank) {
case 0:
MPI_Isend( &val, 1, MPI_INTEGER, 1, 35, MPI_COMM_WORLD, &(req2[0]));
MPI_Isend( &val2, 1, MPI_INTEGER, 1, 36, MPI_COMM_WORLD, &(req2[1]));
MPI_Testsome( 2, req2, &idx, idx2, MPI_STATUSES_IGNORE );
MPI_Waitsome( 2, req2, &idx, idx2, MPI_STATUSES_IGNORE );
break;
case 1:
MPI_Recv( &val, 1, MPI_INTEGER, 0, 35, MPI_COMM_WORLD, &stat );
MPI_Recv( &val2, 1, MPI_INTEGER, 0, 36, MPI_COMM_WORLD, &stat );
break;
}
MPI_Barrier(MPI_COMM_WORLD);
fprintf(stderr, "%5d: DONE\n", myrank);
MPI_Finalize();
}
FORTRAN_API void FORT_CALL mpi_waitsome_( MPI_Fint *incount, MPI_Fint array_of_requests[], MPI_Fint *outcount, MPI_Fint array_of_indices[],
MPI_Fint array_of_statuses[][MPI_STATUS_SIZE], MPI_Fint *__ierr )
{
int i,j,found;
int loutcount;
int *l_indices = 0;
int local_l_indices[MPIR_USE_LOCAL_ARRAY];
MPI_Request *lrequest = 0;
MPI_Request local_lrequest[MPIR_USE_LOCAL_ARRAY];
MPI_Status * c_status = 0;
MPI_Status local_c_status[MPIR_USE_LOCAL_ARRAY];
if ((int)*incount > 0) {
if ((int)*incount > MPIR_USE_LOCAL_ARRAY) {
MPIR_FALLOC(lrequest,(MPI_Request*)MALLOC(sizeof(MPI_Request)* (int)*incount),
MPIR_COMM_WORLD, MPI_ERR_EXHAUSTED,
"MPI_WAITSOME" );
MPIR_FALLOC(l_indices,(int*)MALLOC(sizeof(int)* (int)*incount),
MPIR_COMM_WORLD, MPI_ERR_EXHAUSTED,
"MPI_WAITSOME" );
MPIR_FALLOC(c_status,(MPI_Status*)MALLOC(sizeof(MPI_Status)* (int)*incount),
MPIR_COMM_WORLD, MPI_ERR_EXHAUSTED,
"MPI_WAITSOME" );
}
else {
lrequest = local_lrequest;
l_indices = local_l_indices;
c_status = local_c_status;
}
for (i=0; i<(int)*incount; i++)
lrequest[i] = MPI_Request_f2c( array_of_requests[i] );
*__ierr = MPI_Waitsome((int)*incount,lrequest,&loutcount,l_indices,
c_status);
/* By checking for lrequest[l_indices[i]] = 0,
we handle persistant requests */
for (i=0; i<(int)*incount; i++) {
if ( i < loutcount) {
if (l_indices[i] >= 0) {
array_of_requests[l_indices[i]] =
MPI_Request_c2f( lrequest[l_indices[i]] );
}
}
else {
found = 0;
j = 0;
while ( (!found) && (j<loutcount) ) {
if (l_indices[j++] == i)
found = 1;
}
if (!found)
array_of_requests[i] = MPI_Request_c2f( lrequest[i] );
}
}
}
else
*__ierr = MPI_Waitsome( (int)*incount, (MPI_Request *)0, &loutcount,
l_indices, c_status );
if (*__ierr != MPI_SUCCESS) return;
for (i=0; i<loutcount; i++) {
MPI_Status_c2f( &c_status[i], &(array_of_statuses[i][0]) );
if (l_indices[i] >= 0)
array_of_indices[i] = l_indices[i] + 1;
}
*outcount = (MPI_Fint)loutcount;
if ((int)*incount > MPIR_USE_LOCAL_ARRAY) {
FREE( l_indices );
FREE( lrequest );
FREE( c_status );
}
}
