static void dequeue_req(const ptl_event_t *e)
{
int found;
MPIR_Request *const rreq = e->user_ptr;
MPI_Aint s_len, r_len;
/* At this point we know the ME is unlinked. Invalidate the handle to
prevent further accesses, e.g. an attempted cancel. */
REQ_PTL(rreq)->put_me = PTL_INVALID_HANDLE;
found = MPIDI_CH3U_Recvq_DP(rreq);
/* an MPI_ANY_SOURCE request may have been previously removed from the
CH3 queue by an FDP (find and dequeue posted) operation */
if (rreq->dev.match.parts.rank != MPI_ANY_SOURCE)
MPIR_Assert(found);
rreq->status.MPI_ERROR = MPI_SUCCESS;
rreq->status.MPI_SOURCE = NPTL_MATCH_GET_RANK(e->match_bits);
rreq->status.MPI_TAG = NPTL_MATCH_GET_TAG(e->match_bits);
MPIDU_Datatype_get_size_macro(rreq->dev.datatype, r_len);
r_len *= rreq->dev.user_count;
s_len = NPTL_HEADER_GET_LENGTH(e->hdr_data);
if (s_len > r_len) {
/* truncated data */
MPIR_STATUS_SET_COUNT(rreq->status, r_len);
MPIR_ERR_SET2(rreq->status.MPI_ERROR, MPI_ERR_TRUNCATE, "**truncate", "**truncate %d %d", s_len, r_len);
} else {
MPIR_STATUS_SET_COUNT(rreq->status, s_len);
}
}
void MPIDI_Datatype_printf(MPI_Datatype type,
int depth,
MPI_Aint displacement,
int blocklength,
int header)
{
#ifdef MPL_USE_DBG_LOGGING
char *string;
MPI_Aint size;
MPI_Aint extent, true_lb, true_ub, lb, ub, sticky_lb, sticky_ub;
if (HANDLE_GET_KIND(type) == HANDLE_KIND_BUILTIN) {
string = MPIDU_Datatype_builtin_to_string(type);
if (type == MPI_LB) sticky_lb = 1;
else sticky_lb = 0;
if (type == MPI_UB) sticky_ub = 1;
else sticky_ub = 0;
}
else {
MPIDU_Datatype *type_ptr;
MPIDU_Datatype_get_ptr(type, type_ptr);
string = MPIDU_Datatype_combiner_to_string(type_ptr->contents->combiner);
sticky_lb = type_ptr->has_sticky_lb;
sticky_ub = type_ptr->has_sticky_ub;
}
MPIDU_Datatype_get_size_macro(type, size);
MPIR_Type_get_true_extent_impl(type, &true_lb, &extent);
true_ub = extent + true_lb;
MPIR_Type_get_extent_impl(type, &lb, &extent);
ub = extent + lb;
if (header == 1) {
/* 012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789 */
MPL_DBG_OUT(MPIR_DBG_DATATYPE,"------------------------------------------------------------------------------------------------------------------------------------------\n");
MPL_DBG_OUT(MPIR_DBG_DATATYPE,"depth type size extent true_lb true_ub lb(s) ub(s) disp blklen\n");
MPL_DBG_OUT(MPIR_DBG_DATATYPE,"------------------------------------------------------------------------------------------------------------------------------------------\n");
}
MPL_DBG_OUT_FMT(MPIR_DBG_DATATYPE,(MPL_DBG_FDEST,"%5d %21s %11d " MPI_AINT_FMT_DEC_SPEC " " MPI_AINT_FMT_DEC_SPEC " " MPI_AINT_FMT_DEC_SPEC " " MPI_AINT_FMT_DEC_SPEC "(" MPI_AINT_FMT_DEC_SPEC ") " MPI_AINT_FMT_DEC_SPEC "(" MPI_AINT_FMT_DEC_SPEC ") " MPI_AINT_FMT_DEC_SPEC " %11d",
depth,
string,
(int) size,
(MPI_Aint) extent,
(MPI_Aint) true_lb,
(MPI_Aint) true_ub,
(MPI_Aint) lb,
(MPI_Aint) sticky_lb,
(MPI_Aint) ub,
(MPI_Aint) sticky_ub,
(MPI_Aint) displacement,
(int) blocklength));
#endif
return;
}
int MPID_Compare_and_swap(const void *origin_addr, const void *compare_addr,
void *result_addr, MPI_Datatype datatype, int target_rank,
MPI_Aint target_disp, MPIR_Win * win_ptr)
{
int mpi_errno = MPI_SUCCESS;
int rank;
MPIDI_VC_t *orig_vc = NULL, *target_vc = NULL;
int made_progress = 0;
MPIR_FUNC_VERBOSE_STATE_DECL(MPID_STATE_MPID_COMPARE_AND_SWAP);
MPIR_FUNC_VERBOSE_RMA_ENTER(MPID_STATE_MPID_COMPARE_AND_SWAP);
MPIR_ERR_CHKANDJUMP(win_ptr->states.access_state == MPIDI_RMA_NONE,
mpi_errno, MPI_ERR_RMA_SYNC, "**rmasync");
if (target_rank == MPI_PROC_NULL) {
goto fn_exit;
}
rank = win_ptr->comm_ptr->rank;
if (win_ptr->shm_allocated == TRUE && target_rank != rank &&
win_ptr->create_flavor != MPI_WIN_FLAVOR_SHARED) {
/* check if target is local and shared memory is allocated on window,
* if so, we directly perform this operation on shared memory region. */
/* FIXME: Here we decide whether to perform SHM operations by checking if origin and target are on
* the same node. However, in ch3:sock, even if origin and target are on the same node, they do
* not within the same SHM region. Here we filter out ch3:sock by checking shm_allocated flag first,
* which is only set to TRUE when SHM region is allocated in nemesis.
* In future we need to figure out a way to check if origin and target are in the same "SHM comm".
*/
MPIDI_Comm_get_vc(win_ptr->comm_ptr, rank, &orig_vc);
MPIDI_Comm_get_vc(win_ptr->comm_ptr, target_rank, &target_vc);
}
/* The datatype must be predefined, and one of: C integer, Fortran integer,
* Logical, Multi-language types, or Byte. This is checked above the ADI,
* so there's no need to check it again here. */
/* FIXME: For shared memory windows, we should provide an implementation
* that uses a processor atomic operation. */
if (target_rank == rank || win_ptr->create_flavor == MPI_WIN_FLAVOR_SHARED ||
(win_ptr->shm_allocated == TRUE && orig_vc->node_id == target_vc->node_id)) {
mpi_errno = MPIDI_CH3I_Shm_cas_op(origin_addr, compare_addr, result_addr,
datatype, target_rank, target_disp, win_ptr);
if (mpi_errno)
MPIR_ERR_POP(mpi_errno);
}
else {
MPIDI_RMA_Op_t *op_ptr = NULL;
MPIDI_CH3_Pkt_cas_t *cas_pkt = NULL;
MPI_Aint type_size;
void *src = NULL, *dest = NULL;
/* Append this operation to the RMA ops queue */
mpi_errno = MPIDI_CH3I_Win_get_op(win_ptr, &op_ptr);
if (mpi_errno != MPI_SUCCESS)
MPIR_ERR_POP(mpi_errno);
MPIR_T_PVAR_TIMER_START(RMA, rma_rmaqueue_set);
/******************** Setting operation struct areas ***********************/
op_ptr->origin_addr = (void *) origin_addr;
op_ptr->origin_count = 1;
op_ptr->origin_datatype = datatype;
op_ptr->result_addr = result_addr;
op_ptr->result_datatype = datatype;
op_ptr->compare_addr = (void *) compare_addr;
op_ptr->compare_datatype = datatype;
op_ptr->target_rank = target_rank;
op_ptr->piggyback_lock_candidate = 1; /* CAS is always able to piggyback LOCK */
/************** Setting packet struct areas in operation ****************/
cas_pkt = &(op_ptr->pkt.cas);
MPIDI_Pkt_init(cas_pkt, MPIDI_CH3_PKT_CAS_IMMED);
cas_pkt->addr = (char *) win_ptr->basic_info_table[target_rank].base_addr +
win_ptr->basic_info_table[target_rank].disp_unit * target_disp;
cas_pkt->datatype = datatype;
cas_pkt->target_win_handle = win_ptr->basic_info_table[target_rank].win_handle;
cas_pkt->flags = MPIDI_CH3_PKT_FLAG_NONE;
/* REQUIRE: All datatype arguments must be of the same, builtin
* type and counts must be 1. */
MPIDU_Datatype_get_size_macro(datatype, type_size);
MPIR_Assert(type_size <= sizeof(MPIDI_CH3_CAS_Immed_u));
src = (void *) origin_addr, dest = (void *) (&(cas_pkt->origin_data));
mpi_errno = immed_copy(src, dest, type_size);
if (mpi_errno != MPI_SUCCESS)
MPIR_ERR_POP(mpi_errno);
src = (void *) compare_addr, dest = (void *) (&(cas_pkt->compare_data));
mpi_errno = immed_copy(src, dest, type_size);
if (mpi_errno != MPI_SUCCESS)
MPIR_ERR_POP(mpi_errno);
MPIR_T_PVAR_TIMER_END(RMA, rma_rmaqueue_set);
mpi_errno = MPIDI_CH3I_Win_enqueue_op(win_ptr, op_ptr);
if (mpi_errno)
MPIR_ERR_POP(mpi_errno);
mpi_errno = MPIDI_CH3I_RMA_Make_progress_target(win_ptr, target_rank, &made_progress);
if (mpi_errno != MPI_SUCCESS)
MPIR_ERR_POP(mpi_errno);
if (MPIR_CVAR_CH3_RMA_ACTIVE_REQ_THRESHOLD >= 0 &&
MPIDI_CH3I_RMA_Active_req_cnt >= MPIR_CVAR_CH3_RMA_ACTIVE_REQ_THRESHOLD) {
while (MPIDI_CH3I_RMA_Active_req_cnt >= MPIR_CVAR_CH3_RMA_ACTIVE_REQ_THRESHOLD) {
mpi_errno = wait_progress_engine();
if (mpi_errno != MPI_SUCCESS)
MPIR_ERR_POP(mpi_errno);
}
}
}
fn_exit:
MPIR_FUNC_VERBOSE_RMA_EXIT(MPID_STATE_MPID_COMPARE_AND_SWAP);
return mpi_errno;
/* --BEGIN ERROR HANDLING-- */
fn_fail:
goto fn_exit;
/* --END ERROR HANDLING-- */
}
int MPIDI_CH3I_Get_accumulate(const void *origin_addr, int origin_count,
MPI_Datatype origin_datatype, void *result_addr, int result_count,
MPI_Datatype result_datatype, int target_rank, MPI_Aint target_disp,
int target_count, MPI_Datatype target_datatype, MPI_Op op,
MPIR_Win * win_ptr, MPIR_Request * ureq)
{
int mpi_errno = MPI_SUCCESS;
intptr_t orig_data_sz, target_data_sz;
int rank;
int dt_contig ATTRIBUTE((unused));
MPI_Aint dt_true_lb ATTRIBUTE((unused));
MPIDU_Datatype*dtp;
MPIDI_VC_t *orig_vc = NULL, *target_vc = NULL;
int made_progress = 0;
MPIR_FUNC_VERBOSE_STATE_DECL(MPID_STATE_MPIDI_CH3I_GET_ACCUMULATE);
MPIR_FUNC_VERBOSE_RMA_ENTER(MPID_STATE_MPIDI_CH3I_GET_ACCUMULATE);
MPIR_ERR_CHKANDJUMP(win_ptr->states.access_state == MPIDI_RMA_NONE,
mpi_errno, MPI_ERR_RMA_SYNC, "**rmasync");
if (target_rank == MPI_PROC_NULL) {
goto fn_exit;
}
MPIDI_Datatype_get_info(target_count, target_datatype, dt_contig, target_data_sz, dtp,
dt_true_lb);
if (target_data_sz == 0) {
goto fn_exit;
}
rank = win_ptr->comm_ptr->rank;
if (win_ptr->shm_allocated == TRUE && target_rank != rank &&
win_ptr->create_flavor != MPI_WIN_FLAVOR_SHARED) {
/* check if target is local and shared memory is allocated on window,
* if so, we directly perform this operation on shared memory region. */
/* FIXME: Here we decide whether to perform SHM operations by checking if origin and target are on
* the same node. However, in ch3:sock, even if origin and target are on the same node, they do
* not within the same SHM region. Here we filter out ch3:sock by checking shm_allocated flag first,
* which is only set to TRUE when SHM region is allocated in nemesis.
* In future we need to figure out a way to check if origin and target are in the same "SHM comm".
*/
MPIDI_Comm_get_vc(win_ptr->comm_ptr, rank, &orig_vc);
MPIDI_Comm_get_vc(win_ptr->comm_ptr, target_rank, &target_vc);
}
/* Do =! rank first (most likely branch?) */
if (target_rank == rank || win_ptr->create_flavor == MPI_WIN_FLAVOR_SHARED ||
(win_ptr->shm_allocated == TRUE && orig_vc->node_id == target_vc->node_id)) {
mpi_errno = MPIDI_CH3I_Shm_get_acc_op(origin_addr, origin_count, origin_datatype,
result_addr, result_count, result_datatype,
target_rank, target_disp, target_count,
target_datatype, op, win_ptr);
if (mpi_errno)
MPIR_ERR_POP(mpi_errno);
if (ureq) {
/* Complete user request and release the ch3 ref */
mpi_errno = MPID_Request_complete(ureq);
if (mpi_errno != MPI_SUCCESS) {
MPIR_ERR_POP(mpi_errno);
}
}
}
else {
MPIDI_RMA_Op_t *op_ptr = NULL;
MPIDI_CH3_Pkt_get_accum_t *get_accum_pkt;
MPI_Aint origin_type_size;
MPI_Aint target_type_size;
int use_immed_pkt = FALSE, i;
int is_origin_contig, is_target_contig, is_result_contig;
MPI_Aint stream_elem_count, stream_unit_count;
MPI_Aint predefined_dtp_size, predefined_dtp_count, predefined_dtp_extent;
MPIDU_Datatype*origin_dtp = NULL, *target_dtp = NULL, *result_dtp = NULL;
int is_empty_origin = FALSE;
/* Judge if origin buffer is empty */
if (op == MPI_NO_OP)
is_empty_origin = TRUE;
/* Append the operation to the window's RMA ops queue */
mpi_errno = MPIDI_CH3I_Win_get_op(win_ptr, &op_ptr);
if (mpi_errno != MPI_SUCCESS)
MPIR_ERR_POP(mpi_errno);
/* TODO: Can we use the MPIDI_RMA_ACC_CONTIG optimization? */
MPIR_T_PVAR_TIMER_START(RMA, rma_rmaqueue_set);
/******************** Setting operation struct areas ***********************/
op_ptr->origin_addr = (void *) origin_addr;
op_ptr->origin_count = origin_count;
op_ptr->origin_datatype = origin_datatype;
op_ptr->result_addr = result_addr;
op_ptr->result_count = result_count;
op_ptr->result_datatype = result_datatype;
op_ptr->target_rank = target_rank;
/* Remember user request */
op_ptr->ureq = ureq;
/* if source or target datatypes are derived, increment their
* reference counts */
if (is_empty_origin == FALSE && !MPIR_DATATYPE_IS_PREDEFINED(origin_datatype)) {
MPIDU_Datatype_get_ptr(origin_datatype, origin_dtp);
}
if (!MPIR_DATATYPE_IS_PREDEFINED(result_datatype)) {
MPIDU_Datatype_get_ptr(result_datatype, result_dtp);
}
if (!MPIR_DATATYPE_IS_PREDEFINED(target_datatype)) {
MPIDU_Datatype_get_ptr(target_datatype, target_dtp);
}
if (is_empty_origin == FALSE) {
MPIDU_Datatype_get_size_macro(origin_datatype, origin_type_size);
MPIR_Assign_trunc(orig_data_sz, origin_count * origin_type_size, intptr_t);
}
else {
/* If origin buffer is empty, set origin data size to 0 */
orig_data_sz = 0;
}
MPIDU_Datatype_get_size_macro(target_datatype, target_type_size);
/* Get size and count for predefined datatype elements */
if (MPIR_DATATYPE_IS_PREDEFINED(target_datatype)) {
predefined_dtp_size = target_type_size;
predefined_dtp_count = target_count;
MPIDU_Datatype_get_extent_macro(target_datatype, predefined_dtp_extent);
}
else {
MPIR_Assert(target_dtp->basic_type != MPI_DATATYPE_NULL);
MPIDU_Datatype_get_size_macro(target_dtp->basic_type, predefined_dtp_size);
predefined_dtp_count = target_data_sz / predefined_dtp_size;
MPIDU_Datatype_get_extent_macro(target_dtp->basic_type, predefined_dtp_extent);
}
MPIR_Assert(predefined_dtp_count > 0 && predefined_dtp_size > 0 &&
predefined_dtp_extent > 0);
/* Calculate number of predefined elements in each stream unit, and
* total number of stream units. */
stream_elem_count = MPIDI_CH3U_Acc_stream_size / predefined_dtp_extent;
stream_unit_count = (predefined_dtp_count - 1) / stream_elem_count + 1;
MPIR_Assert(stream_elem_count > 0 && stream_unit_count > 0);
for (i = 0; i < stream_unit_count; i++) {
if (origin_dtp != NULL) {
MPIDU_Datatype_add_ref(origin_dtp);
}
if (target_dtp != NULL) {
MPIDU_Datatype_add_ref(target_dtp);
}
if (result_dtp != NULL) {
MPIDU_Datatype_add_ref(result_dtp);
}
}
if (is_empty_origin == FALSE) {
MPIDU_Datatype_is_contig(origin_datatype, &is_origin_contig);
}
else {
/* If origin buffer is empty, mark origin data as contig data */
is_origin_contig = 1;
}
MPIDU_Datatype_is_contig(target_datatype, &is_target_contig);
MPIDU_Datatype_is_contig(result_datatype, &is_result_contig);
/* Judge if we can use IMMED data packet */
if ((is_empty_origin == TRUE || MPIR_DATATYPE_IS_PREDEFINED(origin_datatype)) &&
MPIR_DATATYPE_IS_PREDEFINED(result_datatype) &&
MPIR_DATATYPE_IS_PREDEFINED(target_datatype) &&
is_origin_contig && is_target_contig && is_result_contig) {
if (target_data_sz <= MPIDI_RMA_IMMED_BYTES)
use_immed_pkt = TRUE;
}
/* Judge if this operation is a piggyback candidate */
if ((is_empty_origin == TRUE || MPIR_DATATYPE_IS_PREDEFINED(origin_datatype)) &&
MPIR_DATATYPE_IS_PREDEFINED(result_datatype) &&
MPIR_DATATYPE_IS_PREDEFINED(target_datatype)) {
/* FIXME: currently we only piggyback LOCK flag with op using predefined datatypes
* for origin, target and result data. We should extend this optimization to derived
* datatypes as well. */
if (orig_data_sz <= MPIR_CVAR_CH3_RMA_OP_PIGGYBACK_LOCK_DATA_SIZE)
op_ptr->piggyback_lock_candidate = 1;
}
/************** Setting packet struct areas in operation ****************/
get_accum_pkt = &(op_ptr->pkt.get_accum);
if (use_immed_pkt) {
MPIDI_Pkt_init(get_accum_pkt, MPIDI_CH3_PKT_GET_ACCUM_IMMED);
}
else {
MPIDI_Pkt_init(get_accum_pkt, MPIDI_CH3_PKT_GET_ACCUM);
}
get_accum_pkt->addr = (char *) win_ptr->basic_info_table[target_rank].base_addr +
win_ptr->basic_info_table[target_rank].disp_unit * target_disp;
get_accum_pkt->count = target_count;
get_accum_pkt->datatype = target_datatype;
get_accum_pkt->info.dataloop_size = 0;
get_accum_pkt->op = op;
get_accum_pkt->target_win_handle = win_ptr->basic_info_table[target_rank].win_handle;
get_accum_pkt->flags = MPIDI_CH3_PKT_FLAG_NONE;
if (use_immed_pkt) {
void *src = (void *) origin_addr, *dest = (void *) (get_accum_pkt->info.data);
mpi_errno = immed_copy(src, dest, orig_data_sz);
if (mpi_errno != MPI_SUCCESS)
MPIR_ERR_POP(mpi_errno);
}
MPIR_T_PVAR_TIMER_END(RMA, rma_rmaqueue_set);
mpi_errno = MPIDI_CH3I_Win_enqueue_op(win_ptr, op_ptr);
if (mpi_errno)
MPIR_ERR_POP(mpi_errno);
mpi_errno = MPIDI_CH3I_RMA_Make_progress_target(win_ptr, target_rank, &made_progress);
if (mpi_errno != MPI_SUCCESS)
MPIR_ERR_POP(mpi_errno);
if (MPIR_CVAR_CH3_RMA_ACTIVE_REQ_THRESHOLD >= 0 &&
MPIDI_CH3I_RMA_Active_req_cnt >= MPIR_CVAR_CH3_RMA_ACTIVE_REQ_THRESHOLD) {
while (MPIDI_CH3I_RMA_Active_req_cnt >= MPIR_CVAR_CH3_RMA_ACTIVE_REQ_THRESHOLD) {
mpi_errno = wait_progress_engine();
if (mpi_errno != MPI_SUCCESS)
MPIR_ERR_POP(mpi_errno);
}
}
}
fn_exit:
MPIR_FUNC_VERBOSE_RMA_EXIT(MPID_STATE_MPIDI_CH3I_GET_ACCUMULATE);
return mpi_errno;
/* --BEGIN ERROR HANDLING-- */
fn_fail:
goto fn_exit;
/* --END ERROR HANDLING-- */
}
int MPIDI_CH3I_Get(void *origin_addr, int origin_count, MPI_Datatype
origin_datatype, int target_rank, MPI_Aint target_disp,
int target_count, MPI_Datatype target_datatype, MPIR_Win * win_ptr,
MPIR_Request * ureq)
{
int mpi_errno = MPI_SUCCESS;
intptr_t orig_data_sz, target_data_sz;
int dt_contig ATTRIBUTE((unused)), rank;
MPI_Aint dt_true_lb ATTRIBUTE((unused));
MPIDU_Datatype*dtp;
MPIDI_VC_t *orig_vc = NULL, *target_vc = NULL;
int made_progress = 0;
MPIR_FUNC_VERBOSE_STATE_DECL(MPID_STATE_MPIDI_CH3I_GET);
MPIR_FUNC_VERBOSE_RMA_ENTER(MPID_STATE_MPIDI_CH3I_GET);
MPIR_ERR_CHKANDJUMP(win_ptr->states.access_state == MPIDI_RMA_NONE,
mpi_errno, MPI_ERR_RMA_SYNC, "**rmasync");
if (target_rank == MPI_PROC_NULL) {
goto fn_exit;
}
MPIDI_Datatype_get_info(origin_count, origin_datatype, dt_contig, orig_data_sz, dtp,
dt_true_lb);
if (orig_data_sz == 0) {
goto fn_exit;
}
rank = win_ptr->comm_ptr->rank;
if (win_ptr->shm_allocated == TRUE && target_rank != rank &&
win_ptr->create_flavor != MPI_WIN_FLAVOR_SHARED) {
/* check if target is local and shared memory is allocated on window,
* if so, we directly perform this operation on shared memory region. */
/* FIXME: Here we decide whether to perform SHM operations by checking if origin and target are on
* the same node. However, in ch3:sock, even if origin and target are on the same node, they do
* not within the same SHM region. Here we filter out ch3:sock by checking shm_allocated flag first,
* which is only set to TRUE when SHM region is allocated in nemesis.
* In future we need to figure out a way to check if origin and target are in the same "SHM comm".
*/
MPIDI_Comm_get_vc(win_ptr->comm_ptr, rank, &orig_vc);
MPIDI_Comm_get_vc(win_ptr->comm_ptr, target_rank, &target_vc);
}
/* If the get is a local operation, do it here */
if (target_rank == rank || win_ptr->create_flavor == MPI_WIN_FLAVOR_SHARED ||
(win_ptr->shm_allocated == TRUE && orig_vc->node_id == target_vc->node_id)) {
mpi_errno = MPIDI_CH3I_Shm_get_op(origin_addr, origin_count, origin_datatype, target_rank,
target_disp, target_count, target_datatype, win_ptr);
if (mpi_errno)
MPIR_ERR_POP(mpi_errno);
if (ureq) {
/* Complete user request and release the ch3 ref */
mpi_errno = MPID_Request_complete(ureq);
if (mpi_errno != MPI_SUCCESS) {
MPIR_ERR_POP(mpi_errno);
}
}
}
else {
MPIDI_RMA_Op_t *op_ptr = NULL;
MPIDI_CH3_Pkt_get_t *get_pkt = NULL;
MPI_Aint target_type_size;
int use_immed_resp_pkt = FALSE;
int is_origin_contig, is_target_contig;
/* queue it up */
mpi_errno = MPIDI_CH3I_Win_get_op(win_ptr, &op_ptr);
if (mpi_errno != MPI_SUCCESS)
MPIR_ERR_POP(mpi_errno);
MPIR_T_PVAR_TIMER_START(RMA, rma_rmaqueue_set);
/******************** Setting operation struct areas ***********************/
/* FIXME: For contig and very short operations, use a streamlined op */
op_ptr->origin_addr = origin_addr;
op_ptr->origin_count = origin_count;
op_ptr->origin_datatype = origin_datatype;
op_ptr->target_rank = target_rank;
/* Remember user request */
op_ptr->ureq = ureq;
/* if source or target datatypes are derived, increment their
* reference counts */
if (!MPIR_DATATYPE_IS_PREDEFINED(origin_datatype)) {
MPIDU_Datatype_get_ptr(origin_datatype, dtp);
MPIDU_Datatype_add_ref(dtp);
}
if (!MPIR_DATATYPE_IS_PREDEFINED(target_datatype)) {
MPIDU_Datatype_get_ptr(target_datatype, dtp);
MPIDU_Datatype_add_ref(dtp);
}
MPIDU_Datatype_is_contig(origin_datatype, &is_origin_contig);
MPIDU_Datatype_is_contig(target_datatype, &is_target_contig);
MPIDU_Datatype_get_size_macro(target_datatype, target_type_size);
MPIR_Assign_trunc(target_data_sz, target_count * target_type_size, intptr_t);
/* Judge if we can use IMMED data response packet */
if (MPIR_DATATYPE_IS_PREDEFINED(origin_datatype) &&
MPIR_DATATYPE_IS_PREDEFINED(target_datatype) && is_origin_contig && is_target_contig) {
if (target_data_sz <= MPIDI_RMA_IMMED_BYTES)
use_immed_resp_pkt = TRUE;
}
/* Judge if this operation is an piggyback candidate. */
if (MPIR_DATATYPE_IS_PREDEFINED(origin_datatype) &&
MPIR_DATATYPE_IS_PREDEFINED(target_datatype)) {
/* FIXME: currently we only piggyback LOCK flag with op using predefined datatypes
* for both origin and target data. We should extend this optimization to derived
* datatypes as well. */
op_ptr->piggyback_lock_candidate = 1;
}
/************** Setting packet struct areas in operation ****************/
get_pkt = &(op_ptr->pkt.get);
MPIDI_Pkt_init(get_pkt, MPIDI_CH3_PKT_GET);
get_pkt->addr = (char *) win_ptr->basic_info_table[target_rank].base_addr +
win_ptr->basic_info_table[target_rank].disp_unit * target_disp;
get_pkt->count = target_count;
get_pkt->datatype = target_datatype;
get_pkt->info.dataloop_size = 0;
get_pkt->target_win_handle = win_ptr->basic_info_table[target_rank].win_handle;
get_pkt->flags = MPIDI_CH3_PKT_FLAG_NONE;
if (use_immed_resp_pkt)
get_pkt->flags |= MPIDI_CH3_PKT_FLAG_RMA_IMMED_RESP;
MPIR_T_PVAR_TIMER_END(RMA, rma_rmaqueue_set);
mpi_errno = MPIDI_CH3I_Win_enqueue_op(win_ptr, op_ptr);
if (mpi_errno)
MPIR_ERR_POP(mpi_errno);
mpi_errno = MPIDI_CH3I_RMA_Make_progress_target(win_ptr, target_rank, &made_progress);
if (mpi_errno != MPI_SUCCESS)
MPIR_ERR_POP(mpi_errno);
if (MPIR_CVAR_CH3_RMA_ACTIVE_REQ_THRESHOLD >= 0 &&
MPIDI_CH3I_RMA_Active_req_cnt >= MPIR_CVAR_CH3_RMA_ACTIVE_REQ_THRESHOLD) {
while (MPIDI_CH3I_RMA_Active_req_cnt >= MPIR_CVAR_CH3_RMA_ACTIVE_REQ_THRESHOLD) {
mpi_errno = wait_progress_engine();
if (mpi_errno != MPI_SUCCESS)
MPIR_ERR_POP(mpi_errno);
}
}
}
fn_exit:
MPIR_FUNC_VERBOSE_RMA_EXIT(MPID_STATE_MPIDI_CH3I_GET);
return mpi_errno;
/* --BEGIN ERROR HANDLING-- */
fn_fail:
goto fn_exit;
/* --END ERROR HANDLING-- */
}
