double MPID_Wtick( void )
{
MPIU_THREADSAFE_INIT_DECL(initTick);
static double tickval = -1.0;
double timediff; /* Keep compiler happy about timediff set before use*/
MPID_Time_t t1, t2;
int cnt;
int icnt;
if (initTick) {
MPIU_THREADSAFE_INIT_BLOCK_BEGIN(initTick);
tickval = 1.0e6;
for (icnt=0; icnt<10; icnt++) {
cnt = 1000;
MPID_Wtime( &t1 );
/* Make it abundently clear to the compiler that this block is
executed at least once. */
do {
MPID_Wtime( &t2 );
MPID_Wtime_diff( &t1, &t2, &timediff );
if (timediff > 0) break;
}
while (cnt--);
if (cnt && timediff > 0.0 && timediff < tickval) {
MPID_Wtime_diff( &t1, &t2, &tickval );
}
}
MPIU_THREADSAFE_INIT_CLEAR(initTick);
MPIU_THREADSAFE_INIT_BLOCK_END(initTick);
}
return tickval;
}
int MPIDI_Win_create(void *base, MPI_Aint size, int disp_unit, MPID_Info *info,
MPID_Comm *comm_ptr, MPID_Win **win_ptr )
{
int mpi_errno=MPI_SUCCESS, i, k, comm_size, rank;
MPI_Aint *tmp_buf;
MPID_Comm *win_comm_ptr;
int errflag = FALSE;
MPIU_CHKPMEM_DECL(4);
MPIU_CHKLMEM_DECL(1);
MPIDI_STATE_DECL(MPID_STATE_MPIDI_WIN_CREATE);
MPIDI_RMA_FUNC_ENTER(MPID_STATE_MPIDI_WIN_CREATE);
/* FIXME: There should be no unreferenced args */
MPIU_UNREFERENCED_ARG(info);
if(initRMAoptions) {
int rc;
MPIU_THREADSAFE_INIT_BLOCK_BEGIN(initRMAoptions);
/* Default is to enable the use of the immediate accumulate feature */
if (!MPL_env2bool( "MPICH_RMA_ACC_IMMED", &rc ))
rc = 1;
MPIDI_CH3_RMA_SetAccImmed(rc);
#ifdef USE_MPIU_INSTR
/* Define all instrumentation handle used in the CH3 RMA here*/
MPIU_INSTR_DURATION_INIT(wincreate_allgather,0,"WIN_CREATE:Allgather");
MPIU_INSTR_DURATION_INIT(winfree_rs,0,"WIN_FREE:ReduceScatterBlock");
MPIU_INSTR_DURATION_INIT(winfree_complete,0,"WIN_FREE:Complete");
MPIU_INSTR_DURATION_INIT(rmaqueue_alloc,0,"Allocate RMA Queue element");
MPIDI_CH3_RMA_InitInstr();
#endif
MPIU_THREADSAFE_INIT_CLEAR(initRMAoptions);
MPIU_THREADSAFE_INIT_BLOCK_END(initRMAoptions);
}
comm_size = comm_ptr->local_size;
rank = comm_ptr->rank;
*win_ptr = (MPID_Win *)MPIU_Handle_obj_alloc( &MPID_Win_mem );
MPIU_ERR_CHKANDJUMP1(!(*win_ptr),mpi_errno,MPI_ERR_OTHER,"**nomem",
"**nomem %s","MPID_Win_mem");
MPIU_Object_set_ref(*win_ptr, 1);
(*win_ptr)->fence_cnt = 0;
(*win_ptr)->base = base;
(*win_ptr)->size = size;
(*win_ptr)->disp_unit = disp_unit;
(*win_ptr)->start_group_ptr = NULL;
(*win_ptr)->start_assert = 0;
(*win_ptr)->attributes = NULL;
(*win_ptr)->rma_ops_list_head = NULL;
(*win_ptr)->rma_ops_list_tail = NULL;
(*win_ptr)->lock_granted = 0;
(*win_ptr)->current_lock_type = MPID_LOCK_NONE;
(*win_ptr)->shared_lock_ref_cnt = 0;
(*win_ptr)->lock_queue = NULL;
(*win_ptr)->my_counter = 0;
(*win_ptr)->my_pt_rma_puts_accs = 0;
mpi_errno = MPIR_Comm_dup_impl(comm_ptr, &win_comm_ptr);
if (mpi_errno) MPIU_ERR_POP(mpi_errno);
(*win_ptr)->comm_ptr = win_comm_ptr;
(*win_ptr)->myrank = rank;
MPIU_INSTR_DURATION_START(wincreate_allgather);
/* allocate memory for the base addresses, disp_units, and
completion counters of all processes */
MPIU_CHKPMEM_MALLOC((*win_ptr)->base_addrs, void **,
comm_size*sizeof(void *),
mpi_errno, "(*win_ptr)->base_addrs");
MPIU_CHKPMEM_MALLOC((*win_ptr)->disp_units, int *, comm_size*sizeof(int),
mpi_errno, "(*win_ptr)->disp_units");
MPIU_CHKPMEM_MALLOC((*win_ptr)->all_win_handles, MPI_Win *,
comm_size*sizeof(MPI_Win),
mpi_errno, "(*win_ptr)->all_win_handles");
MPIU_CHKPMEM_MALLOC((*win_ptr)->pt_rma_puts_accs, int *,
comm_size*sizeof(int),
mpi_errno, "(*win_ptr)->pt_rma_puts_accs");
for (i=0; i<comm_size; i++) (*win_ptr)->pt_rma_puts_accs[i] = 0;
/* get the addresses of the windows, window objects, and completion
counters of all processes. allocate temp. buffer for communication */
MPIU_CHKLMEM_MALLOC(tmp_buf, MPI_Aint *, 3*comm_size*sizeof(MPI_Aint),
mpi_errno, "tmp_buf");
/* FIXME: This needs to be fixed for heterogeneous systems */
tmp_buf[3*rank] = MPIU_PtrToAint(base);
tmp_buf[3*rank+1] = (MPI_Aint) disp_unit;
tmp_buf[3*rank+2] = (MPI_Aint) (*win_ptr)->handle;
mpi_errno = MPIR_Allgather_impl(MPI_IN_PLACE, 0, MPI_DATATYPE_NULL,
tmp_buf, 3 * sizeof(MPI_Aint), MPI_BYTE,
comm_ptr, &errflag);
MPIU_INSTR_DURATION_END(wincreate_allgather);
if (mpi_errno) { MPIU_ERR_POP(mpi_errno); }
MPIU_ERR_CHKANDJUMP(errflag, mpi_errno, MPI_ERR_OTHER, "**coll_fail");
k = 0;
for (i=0; i<comm_size; i++)
{
(*win_ptr)->base_addrs[i] = MPIU_AintToPtr(tmp_buf[k++]);
(*win_ptr)->disp_units[i] = (int) tmp_buf[k++];
(*win_ptr)->all_win_handles[i] = (MPI_Win) tmp_buf[k++];
}
fn_exit:
MPIU_CHKLMEM_FREEALL();
MPIDI_RMA_FUNC_EXIT(MPID_STATE_MPIDI_WIN_CREATE);
return mpi_errno;
/* --BEGIN ERROR HANDLING-- */
fn_fail:
MPIU_CHKPMEM_REAP();
goto fn_exit;
/* --END ERROR HANDLING-- */
}
int MPIR_Datatype_init_names(void)
{
#ifdef HAVE_ERROR_CHECKING
static const char FCNAME[] = "MPIR_Datatype_init_names";
#endif
int mpi_errno = MPI_SUCCESS;
int i;
MPID_Datatype *datatype_ptr = NULL;
MPIU_THREADSAFE_INIT_DECL(needsInit);
if (needsInit) {
MPIU_THREADSAFE_INIT_BLOCK_BEGIN(needsInit);
/* Make sure that the basics have datatype structures allocated
* and filled in for them. They are just integers prior to this
* call.
*/
mpi_errno = MPIR_Datatype_builtin_fillin();
if (mpi_errno != MPI_SUCCESS) {
MPIU_ERR_POPFATAL(mpi_errno);
}
/* For each predefined type, ensure that there is a corresponding
object and that the object's name is set */
for (i=0; mpi_names[i].name != 0; i++) {
/* The size-specific types may be DATATYPE_NULL, as might be those
based on 'long long' and 'long double' if those types were
disabled at configure time. */
if (mpi_names[i].dtype == MPI_DATATYPE_NULL) continue;
MPID_Datatype_get_ptr(mpi_names[i].dtype, datatype_ptr);
if (datatype_ptr < MPID_Datatype_builtin ||
datatype_ptr > MPID_Datatype_builtin + MPID_DATATYPE_N_BUILTIN)
{
MPIU_ERR_SETFATALANDJUMP1(mpi_errno,MPI_ERR_INTERN,
"**typeinitbadmem","**typeinitbadmem %d", i);
}
if (!datatype_ptr) {
MPIU_ERR_SETFATALANDJUMP1(mpi_errno,MPI_ERR_INTERN,
"**typeinitfail", "**typeinitfail %d", i - 1);
}
MPIU_DBG_MSG_FMT(DATATYPE,VERBOSE,(MPIU_DBG_FDEST,
"mpi_names[%d].name = %p", i, mpi_names[i].name));
MPIU_Strncpy(datatype_ptr->name, mpi_names[i].name,
MPI_MAX_OBJECT_NAME);
}
/* Handle the minloc/maxloc types */
for (i=0; mpi_maxloc_names[i].name != 0; i++) {
/* types based on 'long long' and 'long double' may be disabled at
configure time, and their values set to MPI_DATATYPE_NULL. skip
those types. */
if (mpi_maxloc_names[i].dtype == MPI_DATATYPE_NULL) continue;
MPID_Datatype_get_ptr(mpi_maxloc_names[i].dtype,
datatype_ptr);
if (!datatype_ptr) {
MPIU_ERR_SETFATALANDJUMP(mpi_errno,MPI_ERR_INTERN, "**typeinitminmaxloc");
}
MPIU_Strncpy(datatype_ptr->name, mpi_maxloc_names[i].name,
MPI_MAX_OBJECT_NAME);
}
MPIU_THREADSAFE_INIT_CLEAR(needsInit);
fn_fail:;
MPIU_THREADSAFE_INIT_BLOCK_END(needsInit);
}
return mpi_errno;
}
