s_smpi_subtype_t *subtype = datatype->substruct;
- if(datatype->has_subtype == 1){
+ if(((flags & RECV) && (flags & ACCUMULATE)) || (datatype->has_subtype == 1)){
// This part handles the problem of non-contiguous memory
old_buf = buf;
buf = count==0 ? NULL : xbt_malloc(count*smpi_datatype_size(datatype));
- if (flags & SEND) {
+ if ((datatype->has_subtype == 1) && (flags & SEND)) {
subtype->serialize(old_buf, buf, count, datatype->substruct);
}
}
request->truncated = 0;
request->real_size = 0;
request->real_tag = 0;
-
- request->refcount=1;
+ if(flags & PERSISTENT)
+ request->refcount = 1;
+ else
+ request->refcount = 0;
+ request->op = MPI_REPLACE;
#ifdef HAVE_TRACING
request->send = 0;
request->recv = 0;
action_fp=NULL;
if (path) {
action_fp = fopen(path, "r");
- xbt_assert(action_fp != NULL, "Cannot open %s: %s", path,
- strerror(errno));
+ if (action_fp == NULL)
+ xbt_die("Cannot open %s: %s", path, strerror(errno));
}
if (!xbt_dict_is_empty(action_queues)) {
MPI_Request request = NULL; /* MC needs the comm to be set to NULL during the call */
request = build_request(buf==MPI_BOTTOM ? (void*)0 : buf, count, datatype, smpi_process_index(), smpi_group_index(smpi_comm_group(comm), dst), tag,
comm, PERSISTENT | SEND | PREPARED);
- request->refcount++;
return request;
}
MPI_Request request = NULL; /* MC needs the comm to be set to NULL during the call */
request = build_request(buf==MPI_BOTTOM ? (void*)0 : buf, count, datatype, smpi_process_index(), smpi_group_index(smpi_comm_group(comm), dst), tag,
comm, PERSISTENT | SSEND | SEND | PREPARED);
- request->refcount++;
return request;
}
MPI_Request request = NULL; /* MC needs the comm to be set to NULL during the call */
request = build_request(buf==MPI_BOTTOM ? (void*)0 : buf, count, datatype, src == MPI_ANY_SOURCE ? MPI_ANY_SOURCE : smpi_group_index(smpi_comm_group(comm), src), smpi_process_index(), tag,
comm, PERSISTENT | RECV | PREPARED);
- request->refcount++;
return request;
}
xbt_assert(!request->action, "Cannot (re)start a non-finished communication");
request->flags &= ~PREPARED;
+ request->flags &= ~FINISHED;
+ request->refcount++;
+
if (request->flags & RECV) {
print_request("New recv", request);
//FIXME: if receive is posted with a large size, but send is smaller, mailboxes may not match !
- if (request->size < sg_cfg_get_int("smpi/async_small_thres"))
+ if (request->flags & RMA || request->size < sg_cfg_get_int("smpi/async_small_thres"))
mailbox = smpi_process_mailbox_small();
else
mailbox = smpi_process_mailbox();
smpi_comm_use(request->comm);
request->action = simcall_comm_irecv(mailbox, request->buf,
&request->real_size, &match_recv,
+ &smpi_comm_copy_buffer_callback,
request, -1.0);
//integrate pseudo-timing for buffering of small messages, do not bother to execute the simcall if 0
int receiver = request->dst;//smpi_group_index(smpi_comm_group(request->comm), request->dst);
#ifdef HAVE_TRACING
- int rank = smpi_process_index();
+ int rank = request->src;
if (TRACE_smpi_view_internals()) {
TRACE_smpi_send(rank, rank, receiver,request->size);
}
/* return;*/
/* }*/
print_request("New send", request);
- if (request->size < sg_cfg_get_int("smpi/async_small_thres")) { // eager mode
+ if (request->flags & RMA || request->size < sg_cfg_get_int("smpi/async_small_thres")) { // eager mode
mailbox = smpi_process_remote_mailbox_small(receiver);
}else{
XBT_DEBUG("Send request %p is not in the permanent receive mailbox (buf: %p)",request,request->buf);
mailbox = smpi_process_remote_mailbox(receiver);
}
+
+ void* buf = request->buf;
if ( (! (request->flags & SSEND)) && (request->size < sg_cfg_get_int("smpi/send_is_detached_thres"))) {
void *oldbuf = NULL;
request->detached = 1;
+ XBT_DEBUG("Send request %p is detached", request);
request->refcount++;
if(request->old_type->has_subtype == 0){
oldbuf = request->buf;
if (!_xbt_replay_is_active() && oldbuf && request->size!=0){
- request->buf = xbt_malloc(request->size);
- memcpy(request->buf,oldbuf,request->size);
+ if((smpi_privatize_global_variables)
+ && ((char*)request->buf >= start_data_exe)
+ && ((char*)request->buf < start_data_exe + size_data_exe )){
+ XBT_DEBUG("Privatization : We are sending from a zone inside global memory. Switch data segment ");
+ switch_data_segment(request->src);
+ }
+ buf = xbt_malloc(request->size);
+ memcpy(buf,oldbuf,request->size);
+ XBT_DEBUG("buf %p copied into %p",oldbuf,buf);
}
}
- XBT_DEBUG("Send request %p is detached; buf %p copied into %p",request,oldbuf,request->buf);
}
// we make a copy here, as the size is modified by simix, and we may reuse the request in another receive later
smpi_comm_use(request->comm);
//if we are giving back the control to the user without waiting for completion, we have to inject timings
- double sleeptime =0.0;
+ double sleeptime = 0.0;
if(request->detached || (request->flags & (ISEND|SSEND))){// issend should be treated as isend
//isend and send timings may be different
sleeptime = (request->flags & ISEND)? smpi_ois(request->size) : smpi_os(request->size);
}
- if(sleeptime!=0.0){
+ if(sleeptime != 0.0){
simcall_process_sleep(sleeptime);
XBT_DEBUG("sending size of %zu : sleep %f ", request->size, smpi_os(request->size));
}
-
request->action =
- simcall_comm_isend(mailbox, request->size, -1.0,
- request->buf, request->real_size,
+ simcall_comm_isend(SIMIX_process_from_PID(request->src+1), mailbox, request->size, -1.0,
+ buf, request->real_size,
&match_send,
- &xbt_free, // how to free the userdata if a detached send fails
+ &xbt_free_f, // how to free the userdata if a detached send fails
+ &smpi_comm_copy_buffer_callback,
request,
// detach if msg size < eager/rdv switch limit
request->detached);
*request = MPI_REQUEST_NULL;
}else{
print_request("Decrementing", (*request));
-
}
}else{
xbt_die("freeing an already free request");
}
}
+
+MPI_Request smpi_rma_send_init(void *buf, int count, MPI_Datatype datatype,
+ int src, int dst, int tag, MPI_Comm comm, MPI_Op op)
+{
+ MPI_Request request = NULL; /* MC needs the comm to be set to NULL during the call */
+ if(op==MPI_OP_NULL){
+ request = build_request(buf==MPI_BOTTOM ? (void*)0 : buf , count, datatype, src, dst, tag,
+ comm, RMA | NON_PERSISTENT | ISEND | SEND | PREPARED);
+ }else{
+ request = build_request(buf==MPI_BOTTOM ? (void*)0 : buf, count, datatype, src, dst, tag,
+ comm, RMA | NON_PERSISTENT | ISEND | SEND | PREPARED | ACCUMULATE);
+ request->op = op;
+ }
+ return request;
+}
+
+MPI_Request smpi_rma_recv_init(void *buf, int count, MPI_Datatype datatype,
+ int src, int dst, int tag, MPI_Comm comm, MPI_Op op)
+{
+ MPI_Request request = NULL; /* MC needs the comm to be set to NULL during the call */
+ if(op==MPI_OP_NULL){
+ request = build_request(buf==MPI_BOTTOM ? (void*)0 : buf, count, datatype, src, dst, tag,
+ comm, RMA | NON_PERSISTENT | RECV | PREPARED);
+ }else{
+ request = build_request(buf==MPI_BOTTOM ? (void*)0 : buf, count, datatype, src, dst, tag,
+ comm, RMA | NON_PERSISTENT | RECV | PREPARED | ACCUMULATE);
+ request->op = op;
+ }
+ return request;
+}
+
+
MPI_Request smpi_isend_init(void *buf, int count, MPI_Datatype datatype,
int dst, int tag, MPI_Comm comm)
{
MPI_Request request = NULL; /* MC needs the comm to be set to NULL during the call */
request = build_request(buf==MPI_BOTTOM ? (void*)0 : buf , count, datatype, smpi_process_index(), smpi_group_index(smpi_comm_group(comm), dst), tag,
- comm, NON_PERSISTENT | ISEND | SEND | PREPARED);
+ comm, PERSISTENT | ISEND | SEND | PREPARED);
return request;
}
return request;
}
-
-
MPI_Request smpi_irecv_init(void *buf, int count, MPI_Datatype datatype,
int src, int tag, MPI_Comm comm)
{
MPI_Request request = NULL; /* MC needs the comm to be set to NULL during the call */
request = build_request(buf==MPI_BOTTOM ? (void*)0 : buf, count, datatype, src == MPI_ANY_SOURCE ? MPI_ANY_SOURCE : smpi_group_index(smpi_comm_group(comm), src), smpi_process_index(), tag,
- comm, NON_PERSISTENT | RECV | PREPARED);
+ comm, PERSISTENT | RECV | PREPARED);
return request;
}
smpi_irecv_init(recvbuf, recvcount, recvtype, src, recvtag, comm);
smpi_mpi_startall(2, requests);
smpi_mpi_waitall(2, requests, stats);
+ smpi_mpi_request_free(&requests[0]);
+ smpi_mpi_request_free(&requests[1]);
if(status != MPI_STATUS_IGNORE) {
// Copy receive status
*status = stats[1];
MPI_Request req = *request;
smpi_empty_status(status);
- if(!(req->detached && req->flags & SEND) && !(req->flags & PREPARED)){
+ if(!(req->detached && req->flags & SEND)
+ && !(req->flags & PREPARED)){
if(status != MPI_STATUS_IGNORE) {
int src = req->src == MPI_ANY_SOURCE ? req->real_src : req->src;
status->MPI_SOURCE = smpi_group_rank(smpi_comm_group(req->comm), src);
print_request("Finishing", req);
MPI_Datatype datatype = req->old_type;
- if(datatype->has_subtype == 1){
- // This part handles the problem of non-contignous memory
- // the unserialization at the reception
- s_smpi_subtype_t *subtype = datatype->substruct;
+ if((req->flags & ACCUMULATE) || (datatype->has_subtype == 1)){
+ if (!_xbt_replay_is_active()){
+ if( smpi_privatize_global_variables
+ && ((char*)req->old_buf >= start_data_exe)
+ && ((char*)req->old_buf < start_data_exe + size_data_exe )
+ ){
+ XBT_VERB("Privatization : We are unserializing to a zone in global memory - Switch data segment ");
+ switch_data_segment(smpi_process_index());
+ }
+ }
if(req->flags & RECV) {
- subtype->unserialize(req->buf, req->old_buf, req->real_size/smpi_datatype_size(datatype) , datatype->substruct);
+
+ if(datatype->has_subtype == 1){
+ // This part handles the problem of non-contignous memory
+ // the unserialization at the reception
+ s_smpi_subtype_t *subtype = datatype->substruct;
+ subtype->unserialize(req->buf, req->old_buf, req->real_size/smpi_datatype_size(datatype) , datatype->substruct, req->op);
+ if(req->detached == 0) free(req->buf);
+ }else{//apply op on contiguous buffer for accumulate
+ int n =req->real_size/smpi_datatype_size(datatype);
+ smpi_op_apply(req->op, req->buf, req->old_buf, &n, &datatype);
+ }
}
- if(req->detached == 0) free(req->buf);
}
smpi_comm_unuse(req->comm);
smpi_datatype_unuse(datatype);
if(req->detached_sender!=NULL){
smpi_mpi_request_free(&(req->detached_sender));
}
-
- if(req->flags & NON_PERSISTENT) {
- smpi_mpi_request_free(request);
- } else {
+ if(req->flags & PERSISTENT)
req->action = NULL;
- }
+ req->flags |= FINISHED;
+
+ smpi_mpi_request_free(request);
+
}
int smpi_mpi_test(MPI_Request * request, MPI_Status * status) {
flag = simcall_comm_test((*request)->action);
if (flag) {
finish_wait(request, status);
+ if (*request != MPI_REQUEST_NULL && !((*request)->flags & PERSISTENT))
*request = MPI_REQUEST_NULL;
}
}
if(i != -1) {
*index = map[i];
finish_wait(&requests[*index], status);
+ if (requests[*index] != MPI_REQUEST_NULL && (requests[*index]->flags & NON_PERSISTENT))
requests[*index] = MPI_REQUEST_NULL;
flag = 1;
}
void smpi_mpi_iprobe(int source, int tag, MPI_Comm comm, int* flag, MPI_Status* status){
MPI_Request request =build_request(NULL, 0, MPI_CHAR, source == MPI_ANY_SOURCE ? MPI_ANY_SOURCE : smpi_group_index(smpi_comm_group(comm), source), smpi_comm_rank(comm), tag,
- comm, NON_PERSISTENT | RECV);
+ comm, PERSISTENT | RECV);
//to avoid deadlock, we have to sleep some time here, or the timer won't advance and we will only do iprobe simcalls
double sleeptime= sg_cfg_get_double("smpi/iprobe");
}
finish_wait(request, status);
- *request = MPI_REQUEST_NULL;
+ if (*request != MPI_REQUEST_NULL && ((*request)->flags & NON_PERSISTENT))
+ *request = MPI_REQUEST_NULL;
// FIXME for a detached send, finish_wait is not called:
}
size = 0;
XBT_DEBUG("Wait for one of %d", count);
for(i = 0; i < count; i++) {
- if (requests[i] != MPI_REQUEST_NULL && !(requests[i]->flags & PREPARED)) {
+ if (requests[i] != MPI_REQUEST_NULL
+ && !(requests[i]->flags & PREPARED)
+ && !(requests[i]->flags & FINISHED)) {
if (requests[i]->action != NULL) {
XBT_DEBUG("Waiting any %p ", requests[i]);
xbt_dynar_push(comms, &requests[i]->action);
size=0;//so we free the dynar but don't do the waitany call
index=i;
finish_wait(&requests[i], status);//cleanup if refcount = 0
+ if (requests[i] != MPI_REQUEST_NULL && (requests[i]->flags & NON_PERSISTENT))
requests[i]=MPI_REQUEST_NULL;//set to null
break;
}
if (i != -1) {
index = map[i];
finish_wait(&requests[index], status);
+ if (requests[i] != MPI_REQUEST_NULL && (requests[i]->flags & NON_PERSISTENT))
requests[index] = MPI_REQUEST_NULL;
}
}
}
}
for(c = 0; c < count; c++) {
+
if (MC_is_active()) {
smpi_mpi_wait(&requests[c], pstat);
index = c;
index = smpi_mpi_waitany(count, requests, pstat);
if (index == MPI_UNDEFINED)
break;
+ if (requests[index] != MPI_REQUEST_NULL && (requests[index]->flags & NON_PERSISTENT))
requests[index]=MPI_REQUEST_NULL;
}
if (status != MPI_STATUSES_IGNORE) {
if(status != MPI_STATUSES_IGNORE) {
status[index] = *pstat;
}
+ if (requests[index] != MPI_REQUEST_NULL && (requests[index]->flags & NON_PERSISTENT))
requests[index]=MPI_REQUEST_NULL;
}else{
return MPI_UNDEFINED;
if(status != MPI_STATUSES_IGNORE) {
status[i] = *pstat;
}
+ if ((requests[i] != MPI_REQUEST_NULL) && requests[i]->flags & NON_PERSISTENT)
requests[i]=MPI_REQUEST_NULL;
-
}
}else{
count_dead++;
// Wait for completion of irecv's.
smpi_mpi_startall(size - 1, requests);
smpi_mpi_waitall(size - 1, requests, MPI_STATUS_IGNORE);
+ for(src = 0; src < size-1; src++) {
+ smpi_mpi_request_free(&requests[src]);
+ }
xbt_free(requests);
}
}
// Wait for completion of irecv's.
smpi_mpi_startall(size - 1, requests);
smpi_mpi_waitall(size - 1, requests, MPI_STATUS_IGNORE);
+ for(src = 0; src < size-1; src++) {
+ smpi_mpi_request_free(&requests[src]);
+ }
xbt_free(requests);
}
}
// Wait for completion of all comms.
smpi_mpi_startall(2 * (size - 1), requests);
smpi_mpi_waitall(2 * (size - 1), requests, MPI_STATUS_IGNORE);
+ for(other = 0; other < 2*(size-1); other++) {
+ smpi_mpi_request_free(&requests[other]);
+ }
xbt_free(requests);
}
// Wait for completion of all comms.
smpi_mpi_startall(2 * (size - 1), requests);
smpi_mpi_waitall(2 * (size - 1), requests, MPI_STATUS_IGNORE);
+ for(other = 0; other < 2*(size-1); other++) {
+ smpi_mpi_request_free(&requests[other]);
+ }
xbt_free(requests);
}
// Wait for completion of isend's.
smpi_mpi_startall(size - 1, requests);
smpi_mpi_waitall(size - 1, requests, MPI_STATUS_IGNORE);
+ for(dst = 0; dst < size-1; dst++) {
+ smpi_mpi_request_free(&requests[dst]);
+ }
xbt_free(requests);
}
}
// Wait for completion of isend's.
smpi_mpi_startall(size - 1, requests);
smpi_mpi_waitall(size - 1, requests, MPI_STATUS_IGNORE);
+ for(dst = 0; dst < size-1; dst++) {
+ smpi_mpi_request_free(&requests[dst]);
+ }
xbt_free(requests);
}
}
XBT_DEBUG("finished waiting any request with index %d", index);
if(index == MPI_UNDEFINED) {
break;
+ }else{
+ smpi_mpi_request_free(&requests[index]);
}
if(op) /* op can be MPI_OP_NULL that does nothing */
smpi_op_apply(op, tmpbufs[index], recvbuf, &count, &datatype);
for(index = 0; index < rank; index++) {
xbt_free(tmpbufs[index]);
}
+ for(index = 0; index < size-1; index++) {
+ smpi_mpi_request_free(&requests[index]);
+ }
xbt_free(tmpbufs);
xbt_free(requests);
}
for(index = 0; index < rank; index++) {
xbt_free(tmpbufs[index]);
}
+ for(index = 0; index < size-1; index++) {
+ smpi_mpi_request_free(&requests[index]);
+ }
xbt_free(tmpbufs);
xbt_free(requests);
}
