int main(int argc, char **argv) {
/* int heap=300000, stack=300000; */
int me, nprocs;
/* Step1: Initialize Message Passing library */
armci_msg_init(&argc, &argv);
/* Step2: Initialize ARMCI */
ARMCI_Init();
/* Step3: Initialize Memory Allocator (MA) */
/*bjp
if(! MA_init(C_DBL, stack, heap) ) ARMCI_Error("MA_init failed",stack+heap);
*/
me = armci_msg_me();
nprocs = armci_msg_nproc();
if(me==0) {
printf("\nUsing %d processes\n\n", nprocs); fflush(stdout);
}
TRANSPOSE1D();
if(me==0)printf("\nTerminating ..\n");
ARMCI_Finalize();
armci_msg_finalize();
return(0);
}
int main(int argc, char **argv)
{
armci_msg_init(&argc,&argv);
ARMCI_Init_args(&argc, &argv);
me = armci_msg_me();
nproc = armci_msg_nproc();
/* This test only works for two processes */
assert(nproc == 2);
if (0 == me) {
printf("msg size (bytes) avg time (us) avg b/w (MB/sec)\n");
}
if (0 == me) {
printf("#PNNL comex Put Test\n");
}
contig_test(MAX_MESSAGE_SIZE, PUT);
if (0 == me) {
printf("#PNNL comex Get Test\n");
}
contig_test(MAX_MESSAGE_SIZE, GET);
if (0 == me) {
printf("#PNNL comex Accumulate Test\n");
}
contig_test(MAX_MESSAGE_SIZE, ACC);
ARMCI_Finalize();
armci_msg_finalize();
return 0;
}
int main(int argc, char *argv[])
{
int ndim;
armci_msg_init(&argc, &argv);
ARMCI_Init_args(&argc, &argv);
nproc = armci_msg_nproc();
me = armci_msg_me();
ARMCI_Barrier();
if (me == 0) {
printf("\nTesting armci_notify\n");
fflush(stdout);
sleep(1);
}
ARMCI_Barrier();
for (ndim = 1; ndim <= MAXDIMS; ndim++) {
test_notify(ndim);
}
ARMCI_Barrier();
ARMCI_Finalize();
armci_msg_finalize();
return(0);
}
void VERIFY(void **b_ptr, int *dims, int *map) {
int i, j, length, icnt, ichk, lmin, lmax;
int *buf, *b;
void *src_ptr, *dst_ptr;
int me, nprocs;
/* Find local processor ID and number of processors */
me = armci_msg_me();
nprocs = armci_msg_nproc();
/* Process 0 verifies that inversion is correct. Start by allocating
buffer and guarantee that it is big enough */
length = (int)(((double)dims[0])/((double)nprocs)) + 1;
buf = (int*)malloc(length*sizeof(int));
if (me == 0) {
icnt = 0;
ichk = 0;
for (i=0; i<nprocs; i++) {
/* Find min and max indices owned by processor i */
lmin = map[i];
if (i<nprocs-1) {
lmax = map[i+1]-1;
} else {
lmax = dims[0]-1;
}
/* evaluate parameters for get call */
length = sizeof(int)*(lmax-lmin+1);
src_ptr = b_ptr[i];
dst_ptr = (void*)buf;
ARMCI_Get(src_ptr, dst_ptr, length, i);
/* check values in buffer */
length = lmax-lmin+1;
b = (int*)dst_ptr;
for (j=0; j<length; j++) {
/* printf("p[%d] b[%d]: %d\n",me,icnt,b[j]); */
if (b[j] != dims[0] - icnt) {
printf("Error found for element %d b: %d != a: %d\n",
icnt,b[j],dims[0]-icnt);
ichk = 1;
}
icnt++;
}
}
if (ichk == 0) {
printf("1D transpose successful. No errors found\n");
} else {
printf("1D transpose failed\n");
}
}
free(buf);
}
void armci_group_init()
{
int grp_me;
#ifdef ARMCI_GROUP
int i;
#endif
ARMCI_iGroup *igroup = (ARMCI_iGroup *)&ARMCI_World_Proc_Group;
#ifdef ARMCI_GROUP
/*setup the world proc group*/
/*
MPI_Comm_size(MPI_COMM_WORLD, &igroup->grp_attr.nproc);
MPI_Comm_rank(MPI_COMM_WORLD, &igroup->grp_attr.grp_me);
*/
igroup->grp_attr.nproc = armci_msg_nproc();
igroup->grp_attr.grp_me = armci_msg_me();
igroup->grp_attr.proc_list = (int *)malloc(igroup->grp_attr.nproc*sizeof(int));
assert(igroup->grp_attr.proc_list != NULL);
for(i=0; i<igroup->grp_attr.nproc; i++) {
igroup->grp_attr.proc_list[i] = i;
}
igroup->grp_attr.grp_clus_info = NULL;
armci_cache_attr((ARMCI_Group*)&ARMCI_World_Proc_Group);
#else
/* save MPI world group and communicatior in ARMCI_World_Proc_Group */
igroup->icomm = MPI_COMM_WORLD;
MPI_Comm_group(MPI_COMM_WORLD, &(igroup->igroup));
/* processes belong to this group should cache attributes */
MPI_Group_rank((MPI_Group)(igroup->igroup), &grp_me);
if(grp_me != MPI_UNDEFINED)
{
armci_cache_attr((ARMCI_Group*)&ARMCI_World_Proc_Group);
}
#endif
/* Initially, World group is the default group */
ARMCI_Default_Proc_Group = ARMCI_World_Proc_Group;
}
int main(int argc, char* argv[])
{
armci_msg_init(&argc, &argv);
nproc = armci_msg_nproc();
me = armci_msg_me();
/* printf("nproc = %d, me = %d\n", nproc, me);*/
if(nproc>MAXPROC && me==0)
ARMCI_Error("Test works for up to %d processors\n",MAXPROC);
if(me==0) {
printf("ARMCI test program (%d processes)\n",nproc);
fflush(stdout);
sleep(1);
}
ARMCI_Init();
if(me==0) {
printf("\n Performing Sparse Matrix-Vector Multiplication ...\n\n");
fflush(stdout);
}
test_sparse();
ARMCI_AllFence();
armci_msg_barrier();
if(me==0) {
printf("\nSuccess!!\n");
fflush(stdout);
}
sleep(2);
armci_msg_barrier();
ARMCI_Finalize();
armci_msg_finalize();
return(0);
}
int main(int argc, char *argv[])
{
ARMCI_Init_args(&argc, &argv);
nproc = armci_msg_nproc();
me = armci_msg_me();
/* printf("nproc = %d, me = %d\n", nproc, me);*/
if (nproc > MAXPROC && me == 0) {
ARMCI_Error("Test works for up to %d processors\n", MAXPROC);
}
if (me == 0) {
printf("ARMCI test program (%d processes)\n", nproc);
fflush(stdout);
sleep(1);
}
if (me == 0) {
printf("\nAggregate put/get requests\n\n");
fflush(stdout);
}
test_aggregate(1); /* cold start */
test_aggregate(0); /* warm start */
ARMCI_AllFence();
ARMCI_Barrier();
if (me == 0) {
printf("\nSuccess!!\n");
fflush(stdout);
}
sleep(2);
ARMCI_Barrier();
ARMCI_Finalize();
armci_msg_finalize();
return(0);
}
/** Map process IDs onto a binary tree.
*
* @param[in] scope Scope of processes involved
* @param[out] root Process id of the root
* @param[out] up Process id of my parent
* @param[out] left Process id of my left child
* @param[out] right Process if of my right child
*/
void armci_msg_bintree(int scope, int *root, int *up, int *left, int *right) {
int me, nproc;
if (scope == SCOPE_NODE) {
*root = 0;
*left = -1;
*right = -1;
return;
}
me = armci_msg_me();
nproc = armci_msg_nproc();
*root = 0;
*up = (me == 0) ? -1 : (me - 1) / 2;
*left = 2*me + 1;
if (*left >= nproc) *left = -1;
*right = 2*me + 2;
if (*right >= nproc) *right = -1;
}
void TRANSPOSE1D() {
int dims[1];
int nelem, i, ierr, min, max, cmin, cmax, lmin, lmax, pmin, pmax;
int src_offset, dst_offset, length;
int *buf, *map;
void *src_ptr, *dst_ptr;
void **a_ptr, **b_ptr;
int *a, *b;
/* Find local processor ID and number of processors */
int me, nprocs;
me = armci_msg_me();
nprocs = armci_msg_nproc();
/* Allocate pointers to data on all processors */
a_ptr = (void**)malloc(nprocs*sizeof(int*));
b_ptr = (void**)malloc(nprocs*sizeof(int*));
map = (int*)malloc(nprocs*sizeof(int));
/* Configure array dimensions. Force an unequal data distribution */
dims[0] = nprocs*TOTALELEMS + nprocs/2;
if (me == 0) printf("Size of array: %d\n\n",dims[0]);
/* Find first (zero-based) index of chunk owned by each processor and
store it in map array */
for (i=0; i<nprocs; i++) {
map[i] = (int)(((double)i)*(((double)dims[0])/((double)nprocs)));
}
/* Figure out what size my portion of array is */
if (me<nprocs-1) {
nelem = map[me+1]-map[me];
} else {
nelem = dims[0]-map[me];
}
/* Allocate memory for array A */
ierr = ARMCI_Malloc(a_ptr, nelem*sizeof(int));
assert(ierr == 0);
assert(a_ptr[me]);
/* Allocate memory for array B */
ierr = ARMCI_Malloc(b_ptr, nelem*sizeof(int));
assert(ierr == 0);
assert(b_ptr[me]);
/* initialize data in array A and zero data in array B */
a = (int*)a_ptr[me];
b = (int*)b_ptr[me];
for (i=0; i<nelem; i++) {
a[i] = i + map[me] + 1;
b[i] = 0;
}
/* Synchronize all processors to guarantee that everyone has data
before proceeding to the next step. */
armci_msg_barrier();
/* Create local buffer for performing inversion */
buf = (int*)malloc(nelem*sizeof(int));
/* Copy inverted data into local buffer */
a = (int*)a_ptr[me];
for (i=0; i<nelem; i++) {
buf[i] = a[nelem-i-1];
}
/* Find out which blocks of array B inverted block should be copied to.
Start by finding min and max indices of data in array B*/
min = dims[0] - (map[me] + nelem);
max = dims[0] - map[me] - 1;
/* Locate processors containing the endpoints */
pmin = 0;
for (i=0; i<nprocs; i++) {
if (min >= map[i]) {
pmin = i;
} else {
break;
}
}
pmax = nprocs-1;
for (i=nprocs-2; i>=0; i--) {
if (max < map[i+1]) {
pmax = i;
} else {
break;
}
}
/* Loop over processors that will receive data and copy inverted data to
processors */
for (i=pmin; i<=pmax; i++) {
/* Find min and max indices owned by processor i */
lmin = map[i];
if (i<nprocs-1) {
lmax = map[i+1]-1;
} else {
lmax = dims[0]-1;
}
/* Find min and max indices that should be sent to processor i */
if (lmin > min) {
cmin = lmin;
} else {
cmin = min;
}
if (lmax < max) {
cmax = lmax;
} else {
cmax = max;
}
/* Find offsets on source and destination processors */
src_offset = cmin - min;
src_ptr = (void*)(buf + src_offset);
dst_offset = cmin - lmin;
dst_ptr = ((char*)b_ptr[i]) + sizeof(int)*dst_offset;
/* Find length of data (in bytes) to be sent to processor i */
length = sizeof(int)*(cmax-cmin+1);
/* Send data to processor */
ARMCI_Put(src_ptr, dst_ptr, length, i);
}
ARMCI_AllFence();
armci_msg_barrier();
free(buf);
VERIFY(b_ptr, dims, map);
free(map);
armci_msg_barrier();
ARMCI_Free(a_ptr[me]);
ARMCI_Free(b_ptr[me]);
free(a_ptr);
free(b_ptr);
}
int main(int argc, char *argv[])
{
int ch;
extern char *optarg;
int i, j, r;
thread_t threads[MAX_TPP];
/* init ARMCI */
ARMCI_Init_args(&argc, &argv);
size = armci_msg_nproc();
rank = armci_msg_me();
while ((ch = getopt(argc, argv, "t:s:i:d:h")) != -1) {
switch (ch) {
case 't': /* # of threads */
tpp = atoi(optarg);
if (tpp < 1 || tpp > MAX_TPP) {
PRINTF0("\"%s\" is improper value for -t, should be a "
"number between 1 and %d(MAX_TPP)\n",
optarg, MAX_TPP);
usage();
}
break;
case 'i': /* # of iterations */
iters = atoi(optarg);
if (iters < 1) {
PRINTF0("\"%s\" is improper value for -t, should be a "
"number equal or larger than 1\n", optarg);
usage();
}
break;
case 's': /* # of elements in the array */
asize = atoi(optarg);
if (iters < 1) {
PRINTF0("\"%s\" is improper value for -s, should be a "
"number equal or larger than 1\n", optarg);
usage();
}
break;
case 'd':
delay = atoi(optarg);
break; /* delay before start */
case 'h':
usage();
break; /* print usage info */
}
}
#ifdef NOTHREADS
tpp = 1;
PRINTF0("Warning: NOTHREADS debug symbol is set -- running w/o threads\n");
#endif
th_size = size * tpp;
PRINTF0("\nTest of multi-threaded capabilities:\n"
"%d threads per process (%d threads total),\n"
"%d array elements of size %d,\n"
"%d iteration(s)\n\n", tpp, th_size, asize, sizeof(atype_t), iters);
if (delay) {
printf("%d: %d\n", rank, getpid());
fflush(stdout);
sleep(delay);
ARMCI_Barrier();
}
TH_INIT(size, tpp);
for (i = 0; i < tpp; i++) {
th_rank[i] = rank * tpp + i;
}
#if defined(DEBUG) && defined(LOG2FILE)
for (i = 0; i < tpp; i++) {
fname[10] = '0' + th_rank[i] / 100;
fname[11] = '0' + th_rank[i] % 100 / 10;
fname[12] = '0' + th_rank[i] % 10;
dbg[i] = fopen(fname, "w");
}
#endif
for (i = 0; i < tpp; i++) {
prndbg(i, "proc %d, thread %d(%d):\n", rank, i, th_rank[i]);
}
/* set global seed (to ensure same random sequence across procs) */
time_seed = (unsigned)time(NULL);
armci_msg_brdcst(&time_seed, sizeof(time_seed), 0);
srand(time_seed);
rand();
prndbg(0, "seed = %u\n", time_seed);
/* random pairs */
pairs = calloc(th_size, sizeof(int));
for (i = 0; i < th_size; i++) {
pairs[i] = -1;
}
for (i = 0; i < th_size; i++) {
if (pairs[i] != -1) {
continue;
}
r = RND(0, th_size);
while (i == r || pairs[r] != -1) {
r = RND(0, th_size);
}
pairs[i] = r;
pairs[r] = i;
}
for (i = 0, cbufl = 0; i < th_size; i++)
cbufl += sprintf(cbuf + cbufl, " %d->%d|%d->%d",
i, pairs[i], pairs[i], pairs[pairs[i]]);
prndbg(0, "random pairs:%s\n", cbuf);
/* random targets */
rnd_tgts = calloc(th_size, sizeof(int));
for (i = 0, cbufl = 0; i < th_size; i++) {
rnd_tgts[i] = RND(0, th_size);
if (rnd_tgts[i] == i) {
i--;
continue;
}
cbufl += sprintf(cbuf + cbufl, " %d", rnd_tgts[i]);
}
prndbg(0, "random targets:%s\n", cbuf);
/* random one */
rnd_one = RND(0, th_size);
prndbg(0, "random one = %d\n", rnd_one);
assert(ptrs1 = calloc(th_size, sizeof(void *)));
assert(ptrs2 = calloc(th_size, sizeof(void *)));
#ifdef NOTHREADS
thread_main((void *)(long)0);
#else
for (i = 0; i < tpp; i++) {
THREAD_CREATE(threads + i, thread_main, (void *)(long)i);
}
for (i = 0; i < tpp; i++) {
THREAD_JOIN(threads[i], NULL);
}
#endif
ARMCI_Barrier();
PRINTF0("Tests Completed\n");
/* clean up */
#if defined(DEBUG) && defined(LOG2FILE)
for (i = 0; i < tpp; i++) {
fclose(dbg[i]);
}
#endif
ARMCI_Finalize();
TH_FINALIZE();
armci_msg_finalize();
return 0;
}
int main(int argc, char *argv[])
{
int i, j;
int ch;
int edge;
int size;
int nloop=5;
double **ptr_loc;
armci_msg_init(&argc,&argv);
nproc = armci_msg_nproc();
me = armci_msg_me();
while ((ch = getopt(argc, argv, "n:b:p:h")) != -1) {
switch(ch) {
case 'n': n = atoi(optarg); break;
case 'b': block_size = atoi(optarg); break;
case 'p': nproc = atoi(optarg); break;
case 'h': {
printf("Usage: LU, or \n");
printf(" LU -nMATRIXSIZE -bBLOCKSIZE -pNPROC\n");
armci_msg_barrier();
armci_msg_finalize();
exit(0);
}
}
}
if(me == 0) {
printf("\n Blocked Dense LU Factorization\n");
printf(" %d by %d Matrix\n", n, n);
printf(" %d Processors\n", nproc);
printf(" %d by %d Element Blocks\n", block_size, block_size);
printf("\n");
}
num_rows = (int) sqrt((double) nproc);
for (;;) {
num_cols = nproc/num_rows;
if (num_rows*num_cols == nproc)
break;
num_rows--;
}
nblocks = n/block_size;
if (block_size * nblocks != n) {
nblocks++;
}
edge = n%block_size;
if (edge == 0) {
edge = block_size;
}
#ifdef DEBUG
if(me == 0)
for (i=0;i<nblocks;i++) {
for (j=0;j<nblocks;j++)
printf("%d ", block_owner(i, j));
printf("\n");
}
armci_msg_barrier();
armci_msg_finalize();
exit(0);
#endif
for (i=0;i<nblocks;i++) {
for (j=0;j<nblocks;j++) {
if(block_owner(i,j) == me) {
if ((i == nblocks-1) && (j == nblocks-1)) {
size = edge*edge;
}
else if ((i == nblocks-1) || (j == nblocks-1)) {
size = edge*block_size;
}
else {
size = block_size*block_size;
}
proc_bytes += size*sizeof(double);
}
}
}
ptr = (void **)malloc(nproc * sizeof(void *));
#ifdef MPI2_ONESIDED
MPI_Alloc_mem(proc_bytes, MPI_INFO_NULL, &ptr[me]);
MPI_Win_create((void*)ptr[me], proc_bytes, 1, MPI_INFO_NULL,
MPI_COMM_WORLD, &win);
for(i=0; i<nproc; i++) ptr[i] = (double *)ptr[me];
MPI_Barrier(MPI_COMM_WORLD);
#else
/* initialize ARMCI */
ARMCI_Init();
ARMCI_Malloc(ptr, proc_bytes);
#endif
a = (double **)malloc(nblocks*nblocks*sizeof(double *));
if (a == NULL) {
fprintf(stderr, "Could not malloc memory for a\n");
exit(-1);
}
ptr_loc = (double **)malloc(nproc*sizeof(double *));
for(i=0; i<nproc; i++) ptr_loc[i] = (double *)ptr[i];
for(i=0; i<nblocks;i ++) {
for(j=0; j<nblocks; j++) {
a[i+j*nblocks] = ptr_loc[block_owner(i, j)];
if ((i == nblocks-1) && (j == nblocks-1)) {
size = edge*edge;
} else if ((i == nblocks-1) || (j == nblocks-1)) {
size = edge*block_size;
} else {
size = block_size*block_size;
}
ptr_loc[block_owner(i, j)] += size;
}
}
/* initialize the array */
init_array();
/* barrier to ensure all initialization is done */
armci_msg_barrier();
/* to remove cold-start misses, all processors touch their own data */
touch_array(block_size, me);
armci_msg_barrier();
if(doprint) {
if(me == 0) {
printf("Matrix before LU decomposition\n");
print_array(me);
}
armci_msg_barrier();
}
lu(n, block_size, me); /* cold start */
/* Starting the timer */
armci_msg_barrier();
if(me == 0) start_timer();
for(i=0; i<nloop; i++) lu(n, block_size, me);
armci_msg_barrier();
/* Timer Stops here */
if(me == 0)
printf("\nRunning time = %f milliseconds.\n\n", elapsed_time()/nloop);
printf("%d: (ngets=%d) Communication (get) time = %e milliseconds\n", me, get_cntr, comm_time*1000/nloop);
if(doprint) {
if(me == 0) {
printf("after LU\n");
print_array(me);
}
armci_msg_barrier();
}
/* done */
#ifdef MPI2_ONESIDED
MPI_Win_free(&win);
MPI_Free_mem(ptr[me]);
#else
ARMCI_Free(ptr[me]);
ARMCI_Finalize();
#endif
armci_msg_finalize();
return 0;
}
int main(int argc, char *argv[])
{
int rc, i, j = 0, rid, ret;
armci_ckpt_ds_t ckptds;
ARMCI_Group grp;
ARMCI_Init_args(&argc, &argv);
nproc = armci_msg_nproc();
me = armci_msg_me();
if (me == 0) {
if (nproc > MAXPROCS) {
ARMCI_Error("nproc > MAXPROCS", nproc);
}
else {
printf("ARMCI test program (%d processes)\n", nproc);
fflush(stdout);
sleep(1);
}
}
armci_init_checkpoint2();
ARMCI_Group_get_world(&grp);
size = SIZE_;
rc = ARMCI_Malloc((void **)ptr_arr, size * 8);
printf("ARMCI test program (%d processes)\n", nproc);
fflush(stdout);
for (size = 1; size <= SIZE_; size *= 2) {
t1 = MPI_Wtime();
for (i = 0; i < 5; i++) {
for (rc = 0; rc < 15; rc++) {
do_work(size);
}
}
time_array[j++] = MPI_Wtime() - t1;
ARMCI_Barrier();
printf("%d:done for size %ld\n", me, size);
fflush(stdout);
}
(void)ARMCI_Ckpt_create_ds(&ckptds, 1);
ckptds.ptr_arr[0] = ptr_arr[me];
ckptds.sz[0] = SIZE_ * 8;
rid = ARMCI_Ckpt_init(NULL, &grp, 1, 0, &ckptds);
printf("%d: After ARMCI_Ckpt_init(): \n", me);
j = 0;
for (size = 128; size <= SIZE_; size *= 2) {
int rc;
int simulate_restart = 1;
t1 = MPI_Wtime();
ret = ARMCI_Ckpt(rid);
if (ret == ARMCI_CKPT) {
printf("%d: Performed CHECKPOINT @ size=%ld\n", me, size);
}
else if (ret == ARMCI_RESTART) {
simulate_restart = 0;
printf("%d: Performed RESTART @ size=%ld\n", me, size);
}
for (i = 0; i < 5; i++) {
for (rc = 0; rc < 15; rc++)
if (i == 3 && rc == 10) {
}
do_work(size);
}
time_array1[j++] = MPI_Wtime() - t1;
sleep(1);
if (simulate_restart && size == FAILURE_SIZE_) {
printf("%d: Simulating FAILURE @ size = %d\n", me, size);
ARMCI_Restart_simulate(rid, 1);
}
printf("%d: DONE for size=%ld regular=%f withckpt=%f\n\n",
me, size, time_array[j-1], time_array1[j-1]);
fflush(stdout);
}
ARMCI_Ckpt_finalize(rid);
printf("Before Finalize()\n");
ARMCI_Barrier();
ARMCI_Finalize();
armci_msg_finalize();
return(0);
}
int main(int argc, char *argv[])
{
int i, j;
int ch;
int edge;
int size;
/* ARMCI */
void **ptr;
double **ptr_loc;
armci_msg_init(&argc,&argv);
nproc = armci_msg_nproc();
me = armci_msg_me();
while ((ch = getopt(argc, argv, "n:b:p:h")) != -1) {
switch(ch) {
case 'n':
n = atoi(optarg);
break;
case 'b':
block_size = atoi(optarg);
break;
case 'p':
nproc = atoi(optarg);
break;
case 'h': {
printf("Usage: LU, or \n");
printf(" LU -nMATRIXSIZE -bBLOCKSIZE -pNPROC\n");
armci_msg_barrier();
armci_msg_finalize();
exit(0);
}
}
}
if(me == 0) {
printf("\n Blocked Dense LU Factorization\n");
printf(" %d by %d Matrix\n", n, n);
printf(" %d Processors\n", nproc);
printf(" %d by %d Element Blocks\n", block_size, block_size);
printf("\n");
}
/* num_rows = (int) sqrt((double) nproc); */
/* for (;;) { */
/* num_cols = nproc/num_rows; */
/* if (num_rows*num_cols == nproc) */
/* break; */
/* num_rows--; */
/* } */
nblocks = n/block_size;
if (block_size * nblocks != n) {
nblocks++;
}
nnodes = nproc / 4;
if((nnodes * 4) != nproc) {
num_cols = nproc - nnodes * 4;
nnodes++;
num_rows = 1;
}
else {
num_cols = 2;
num_rows = 2;
}
num = (nblocks * nblocks)/nnodes;
if((num * nnodes) != (nblocks * nblocks))
num++;
#ifdef DEBUG
if(me == 0)
for (i=0; i<nblocks; i++) {
for (j=0; j<nblocks; j++)
printf("%d ", block_owner(i, j));
printf("\n");
}
armci_msg_barrier();
armci_msg_finalize();
exit(0);
#endif
edge = n%block_size;
if (edge == 0) {
edge = block_size;
}
for (i=0; i<nblocks; i++) {
for (j=0; j<nblocks; j++) {
if(block_owner(i,j) == me) {
if ((i == nblocks-1) && (j == nblocks-1)) {
size = edge*edge;
}
else if ((i == nblocks-1) || (j == nblocks-1)) {
size = edge*block_size;
}
else {
size = block_size*block_size;
}
proc_bytes += size*sizeof(double);
}
}
}
/* initialize ARMCI */
ARMCI_Init_args(&argc, &argv);
ptr = (void **)malloc(nproc * sizeof(void *));
ARMCI_Malloc(ptr, proc_bytes);
a = (double **)malloc(nblocks*nblocks*sizeof(double *));
if (a == NULL) {
fprintf(stderr, "Could not malloc memory for a\n");
exit(-1);
}
ptr_loc = (double **)malloc(nproc*sizeof(double *));
for(i=0; i<nproc; i++) ptr_loc[i] = (double *)ptr[i];
for(i=0; i<nblocks; i ++) {
for(j=0; j<nblocks; j++) {
a[i+j*nblocks] = ptr_loc[block_owner(i, j)];
if ((i == nblocks-1) && (j == nblocks-1)) {
size = edge*edge;
} else if ((i == nblocks-1) || (j == nblocks-1)) {
size = edge*block_size;
} else {
size = block_size*block_size;
}
ptr_loc[block_owner(i, j)] += size;
}
}
/* initialize the array */
init_array();
/* barrier to ensure all initialization is done */
armci_msg_barrier();
/* to remove cold-start misses, all processors touch their own data */
touch_array(block_size, me);
armci_msg_barrier();
if(doprint) {
if(me == 0) {
printf("Matrix before LU decomposition\n");
print_array(me);
}
armci_msg_barrier();
}
/* Starting the timer */
if(me == 0) start_timer();
lu(n, block_size, me);
armci_msg_barrier();
/* Timer Stops here */
if(me == 0)
printf("\nRunning time = %f milliseconds.\n\n", elapsed_time());
if(doprint) {
if(me == 0) {
printf("after LU\n");
print_array(me);
}
armci_msg_barrier();
}
/* done */
ARMCI_Free(ptr[me]);
ARMCI_Finalize();
armci_msg_finalize();
return 0;
}
main(int argc, char *argv[])
{
int i, j, l;
int ch;
extern char *optarg;
int edge;
int size;
int lu_arg[MAX_THREADS][3];
/* ARMCI */
void **ptr;
double **ptr_loc;
THREAD_LOCK_INIT(mutex);
armci_msg_init(&argc,&argv);
nproc = armci_msg_nproc();
me = armci_msg_me();
while ((ch = getopt(argc, argv, "n:b:p:t:d:h")) != -1) {
switch(ch) {
case 'n': n = atoi(optarg); break;
case 'b': block_size = atoi(optarg); break;
case 'p': nproc = atoi(optarg); break;
case 't': th_per_p = atoi(optarg); break;
case 'd': d = atoi(optarg); break;
case 'h': {
printf("Usage: LU, or \n");
printf(" LU -nMATRIXSIZE -bBLOCKSIZE -pNPROC -tTH_PER_P\n");
armci_msg_barrier();
armci_msg_finalize();
exit(0);
}
}
}
if(th_per_p>MAX_THREADS) {
th_per_p=MAX_THREADS;
if(me==0)printf("Warning: cannot run more than %d threads, adjust MAX_THREADS",MAX_THREADS);
}
if (d) {
fprintf(stderr, "%d: %d\n", me, getpid());
sleep(d);
}
nthreads = th_per_p * nproc;
if(me == 0) {
printf("\n Blocked Dense LU Factorization\n");
printf(" %d by %d Matrix\n", n, n);
printf(" %d Processors\n", nproc);
printf(" %d thread(s) per processor, %d threads total\n", th_per_p, nthreads);
printf(" %d by %d Element Blocks\n", block_size, block_size);
printf("\n");
}
num_rows = (int) sqrt((double) nthreads);
for (;;) {
num_cols = nthreads/num_rows;
if (num_rows*num_cols == nthreads)
break;
num_rows--;
}
nblocks = n/block_size;
if (block_size * nblocks != n) {
nblocks++;
}
num = (nblocks * nblocks)/nthreads;
if((num * nthreads) != (nblocks * nblocks))
num++;
edge = n%block_size;
if (edge == 0) {
edge = block_size;
}
#ifdef DEBUG
if(me == 0)
for (i=0;i<nblocks;i++) {
for (j=0;j<nblocks;j++)
printf("%d ", block_owner(i, j));
printf("\n");
}
armci_msg_barrier();
/* armci_msg_finalize(); */
/* exit(0); */
#endif
for (l = 0; l < th_per_p; l++) {
me_th[l] = me * th_per_p + l;
for (i=0;i<nblocks;i++) {
for (j=0;j<nblocks;j++) {
if(block_owner(i,j) == me_th[l]) {
if ((i == nblocks-1) && (j == nblocks-1)) {
size = edge*edge;
}
else if ((i == nblocks-1) || (j == nblocks-1)) {
size = edge*block_size;
}
else {
size = block_size*block_size;
}
thread_doubles[l] += size;
}
}
}
proc_bytes += thread_doubles[l] * sizeof(double);
}
/* initialize ARMCI */
ARMCI_Init();
ptr = (void **)malloc(nproc * sizeof(void *));
ARMCI_Malloc(ptr, proc_bytes);
a = (double **)malloc(nblocks*nblocks*sizeof(double *));
if (a == NULL) {
fprintf(stderr, "Could not malloc memory for a\n");
exit(-1);
}
ptr_loc = (double **)malloc(nthreads*sizeof(double *));
for (i = 0; i < nproc; i++) {
ptr_loc[i * th_per_p] = (double *)ptr[i];
for (j = 1; j < th_per_p; j++)
ptr_loc[i * th_per_p + j] = ptr_loc[i * th_per_p + j - 1] + thread_doubles[j - 1];
}
for(i=0; i<nblocks;i ++) {
for(j=0; j<nblocks; j++) {
a[i+j*nblocks] = ptr_loc[block_owner(i, j)];
if ((i == nblocks-1) && (j == nblocks-1)) {
size = edge*edge;
} else if ((i == nblocks-1) || (j == nblocks-1)) {
size = edge*block_size;
} else {
size = block_size*block_size;
}
ptr_loc[block_owner(i, j)] += size;
}
}
#if 0
for(i=0; i<nblocks*nblocks;i ++) printf("%d: a[%d]=%p\n", me, i, a[i]);
fflush(stdout);
#endif
/* initialize the array */
init_array();
/* barrier to ensure all initialization is done */
armci_msg_barrier();
/* to remove cold-start misses, all processors touch their own data */
/* for (l = 0; l < th_per_p; l++) touch_array(block_size, me_th[l]); */
armci_msg_barrier();
if(doprint) {
if(me == 0) {
printf("Matrix before LU decomposition\n");
print_array(me);
}
armci_msg_barrier();
}
#if 1
for (i = 0; i < nblocks; i++)
for (j = 0; j < nblocks; j++)
print_block_dbg(a[i + j * nblocks], "proc %d, a[%d, %d]:\n", me, i, j);
#endif
TH_INIT(nproc,th_per_p);
/* Starting the timer */
if(me == 0) start_timer();
for (l = 0; l < th_per_p; l++) {
lu_arg[l][0] = n;
lu_arg[l][1] = block_size;
lu_arg[l][2] = l;
THREAD_CREATE(threads + l, lu, lu_arg[l]);
}
for (l = 0; l < th_per_p; l++) THREAD_JOIN(threads[l], NULL);
armci_msg_barrier();
/* Timer Stops here */
if(me == 0)
printf("\nRunning time = %lf milliseconds.\n\n", elapsed_time());
if(doprint) {
if(me == 0) {
printf("after LU\n");
print_array(me);
}
armci_msg_barrier();
}
/* done */
ARMCI_Free(ptr[me]);
ARMCI_Finalize();
armci_msg_finalize();
THREAD_LOCK_DESTROY(mutex);
}
