XBT_LOG_EXTERNAL_CATEGORY(smpi_sender);
XBT_LOG_EXTERNAL_CATEGORY(smpi_util);
-void smpi_process_init(int* argc, char*** argv) {
+void smpi_process_init(int *argc, char ***argv)
+{
int index;
smpi_process_data_t data;
smx_process_t proc;
DEBUG2("<%d> New process in the game: %p", index, proc);
}
-void smpi_process_destroy(void) {
+void smpi_process_destroy(void)
+{
int index = smpi_process_index();
DEBUG1("<%d> Process left the game", index);
}
-static MPI_Request build_request(void* buf, int count, MPI_Datatype datatype, int src, int dst, int tag, MPI_Comm comm, unsigned flags) {
+static MPI_Request build_request(void *buf, int count,
+ MPI_Datatype datatype, int src, int dst,
+ int tag, MPI_Comm comm, unsigned flags)
+{
MPI_Request request;
request = xbt_new(s_smpi_mpi_request_t, 1);
request->complete = 0;
request->match = MPI_REQUEST_NULL;
request->flags = flags;
+#ifdef HAVE_TRACING
+ request->send = 0;
+ request->recv = 0;
+#endif
return request;
}
/* MPI Low level calls */
-MPI_Request smpi_mpi_send_init(void* buf, int count, MPI_Datatype datatype, int dst, int tag, MPI_Comm comm) {
- MPI_Request request = build_request(buf, count, datatype, smpi_comm_rank(comm), dst, tag, comm, PERSISTENT | SEND);
+MPI_Request smpi_mpi_send_init(void *buf, int count, MPI_Datatype datatype,
+ int dst, int tag, MPI_Comm comm)
+{
+ MPI_Request request =
+ build_request(buf, count, datatype, smpi_comm_rank(comm), dst, tag,
+ comm, PERSISTENT | SEND);
return request;
}
-MPI_Request smpi_mpi_recv_init(void* buf, int count, MPI_Datatype datatype, int src, int tag, MPI_Comm comm) {
- MPI_Request request = build_request(buf, count, datatype, src, smpi_comm_rank(comm), tag, comm, PERSISTENT | RECV);
+MPI_Request smpi_mpi_recv_init(void *buf, int count, MPI_Datatype datatype,
+ int src, int tag, MPI_Comm comm)
+{
+ MPI_Request request =
+ build_request(buf, count, datatype, src, smpi_comm_rank(comm), tag,
+ comm, PERSISTENT | RECV);
return request;
}
-void smpi_mpi_start(MPI_Request request) {
- xbt_assert0(request->complete == 0, "Cannot start a non-finished communication");
- if((request->flags & RECV) == RECV) {
+void smpi_mpi_start(MPI_Request request)
+{
+ xbt_assert0(request->complete == 0,
+ "Cannot start a non-finished communication");
+ if ((request->flags & RECV) == RECV) {
smpi_process_post_recv(request);
print_request("New recv", request);
- request->pair = SIMIX_network_irecv(request->rdv, request->buf, &request->size);
+ request->pair =
+ SIMIX_network_irecv(request->rdv, request->buf, &request->size);
} else {
- smpi_process_post_send(request->comm, request); // FIXME
+ smpi_process_post_send(request->comm, request); // FIXME
print_request("New send", request);
- request->pair = SIMIX_network_isend(request->rdv, request->size, -1.0, request->buf, request->size, NULL);
+ request->pair =
+ SIMIX_network_isend(request->rdv, request->size, -1.0,
+ request->buf, request->size, NULL);
}
}
-void smpi_mpi_startall(int count, MPI_Request* requests) {
+void smpi_mpi_startall(int count, MPI_Request * requests)
+{
int i;
- for(i = 0; i < count; i++) {
+ for (i = 0; i < count; i++) {
smpi_mpi_start(requests[i]);
}
}
-void smpi_mpi_request_free(MPI_Request* request) {
+void smpi_mpi_request_free(MPI_Request * request)
+{
xbt_free(*request);
*request = MPI_REQUEST_NULL;
}
-MPI_Request smpi_isend_init(void* buf, int count, MPI_Datatype datatype, int dst, int tag, MPI_Comm comm) {
- MPI_Request request = build_request(buf, count, datatype, smpi_comm_rank(comm), dst, tag, comm, NON_PERSISTENT | SEND);
+MPI_Request smpi_isend_init(void *buf, int count, MPI_Datatype datatype,
+ int dst, int tag, MPI_Comm comm)
+{
+ MPI_Request request =
+ build_request(buf, count, datatype, smpi_comm_rank(comm), dst, tag,
+ comm, NON_PERSISTENT | SEND);
return request;
}
-MPI_Request smpi_mpi_isend(void* buf, int count, MPI_Datatype datatype, int dst, int tag, MPI_Comm comm) {
- MPI_Request request = smpi_isend_init(buf, count, datatype, dst, tag, comm);
+MPI_Request smpi_mpi_isend(void *buf, int count, MPI_Datatype datatype,
+ int dst, int tag, MPI_Comm comm)
+{
+ MPI_Request request =
+ smpi_isend_init(buf, count, datatype, dst, tag, comm);
smpi_mpi_start(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 = build_request(buf, count, datatype, src, smpi_comm_rank(comm), tag, comm, NON_PERSISTENT | RECV);
+MPI_Request smpi_irecv_init(void *buf, int count, MPI_Datatype datatype,
+ int src, int tag, MPI_Comm comm)
+{
+ MPI_Request request =
+ build_request(buf, count, datatype, src, smpi_comm_rank(comm), tag,
+ comm, NON_PERSISTENT | RECV);
return request;
}
-MPI_Request smpi_mpi_irecv(void* buf, int count, MPI_Datatype datatype, int src, int tag, MPI_Comm comm) {
- MPI_Request request = smpi_irecv_init(buf, count, datatype, src, tag, comm);
+MPI_Request smpi_mpi_irecv(void *buf, int count, MPI_Datatype datatype,
+ int src, int tag, MPI_Comm comm)
+{
+ MPI_Request request =
+ smpi_irecv_init(buf, count, datatype, src, tag, comm);
smpi_mpi_start(request);
return request;
}
-void smpi_mpi_recv(void* buf, int count, MPI_Datatype datatype, int src, int tag, MPI_Comm comm, MPI_Status* status) {
+void smpi_mpi_recv(void *buf, int count, MPI_Datatype datatype, int src,
+ int tag, MPI_Comm comm, MPI_Status * status)
+{
MPI_Request request;
request = smpi_mpi_irecv(buf, count, datatype, src, tag, comm);
smpi_mpi_wait(&request, status);
}
-void smpi_mpi_send(void* buf, int count, MPI_Datatype datatype, int dst, int tag, MPI_Comm comm) {
+void smpi_mpi_send(void *buf, int count, MPI_Datatype datatype, int dst,
+ int tag, MPI_Comm comm)
+{
MPI_Request request;
request = smpi_mpi_isend(buf, count, datatype, dst, tag, comm);
smpi_mpi_wait(&request, MPI_STATUS_IGNORE);
}
-void smpi_mpi_sendrecv(void* sendbuf, int sendcount, MPI_Datatype sendtype, int dst, int sendtag, void* recvbuf, int recvcount, MPI_Datatype recvtype, int src, int recvtag, MPI_Comm comm, MPI_Status* status) {
+void smpi_mpi_sendrecv(void *sendbuf, int sendcount, MPI_Datatype sendtype,
+ int dst, int sendtag, void *recvbuf, int recvcount,
+ MPI_Datatype recvtype, int src, int recvtag,
+ MPI_Comm comm, MPI_Status * status)
+{
MPI_Request requests[2];
MPI_Status stats[2];
- requests[0] = smpi_isend_init(sendbuf, sendcount, sendtype, dst, sendtag, comm);
- requests[1] = smpi_irecv_init(recvbuf, recvcount, recvtype, src, recvtag, comm);
+ requests[0] =
+ smpi_isend_init(sendbuf, sendcount, sendtype, dst, sendtag, comm);
+ requests[1] =
+ smpi_irecv_init(recvbuf, recvcount, recvtype, src, recvtag, comm);
smpi_mpi_startall(2, requests);
smpi_mpi_waitall(2, requests, stats);
- if(status != MPI_STATUS_IGNORE) {
+ if (status != MPI_STATUS_IGNORE) {
// Copy receive status
memcpy(status, &stats[1], sizeof(MPI_Status));
}
}
-static void finish_wait(MPI_Request* request, MPI_Status* status) {
- if(status != MPI_STATUS_IGNORE) {
+int smpi_mpi_get_count(MPI_Status * status, MPI_Datatype datatype)
+{
+ return status->count / smpi_datatype_size(datatype);
+}
+
+static void finish_wait(MPI_Request * request, MPI_Status * status)
+{
+ if (status != MPI_STATUS_IGNORE) {
status->MPI_SOURCE = (*request)->src;
status->MPI_TAG = (*request)->tag;
status->MPI_ERROR = MPI_SUCCESS;
+ status->count = SIMIX_communication_get_dst_buf_size((*request)->pair);
}
+ SIMIX_communication_destroy((*request)->pair);
print_request("finishing wait", *request);
- if((*request)->complete == 1) {
+ if ((*request)->complete == 1) {
SIMIX_rdv_destroy((*request)->rdv);
} else {
(*request)->match->complete = 1;
(*request)->match->match = MPI_REQUEST_NULL;
}
- if(((*request)->flags & NON_PERSISTENT) == NON_PERSISTENT) {
+ if (((*request)->flags & NON_PERSISTENT) == NON_PERSISTENT) {
smpi_mpi_request_free(request);
} else {
(*request)->rdv = NULL;
}
}
-int smpi_mpi_test(MPI_Request* request, MPI_Status* status) {
+int smpi_mpi_test(MPI_Request * request, MPI_Status * status)
+{
int flag = (*request)->complete;
- if(flag) {
+ if (flag) {
smpi_mpi_wait(request, status);
}
return flag;
}
-int smpi_mpi_testany(int count, MPI_Request requests[], int* index, MPI_Status* status) {
+int smpi_mpi_testany(int count, MPI_Request requests[], int *index,
+ MPI_Status * status)
+{
int i, flag;
*index = MPI_UNDEFINED;
flag = 0;
- for(i = 0; i < count; i++) {
- if(requests[i] != MPI_REQUEST_NULL && requests[i]->complete) {
+ for (i = 0; i < count; i++) {
+ if (requests[i] != MPI_REQUEST_NULL && requests[i]->complete) {
smpi_mpi_wait(&requests[i], status);
*index = i;
flag = 1;
return flag;
}
-void smpi_mpi_wait(MPI_Request* request, MPI_Status* status) {
+void smpi_mpi_wait(MPI_Request * request, MPI_Status * status)
+{
print_request("wait", *request);
SIMIX_network_wait((*request)->pair, -1.0);
finish_wait(request, status);
}
-int smpi_mpi_waitany(int count, MPI_Request requests[], MPI_Status* status) {
+int smpi_mpi_waitany(int count, MPI_Request requests[],
+ MPI_Status * status)
+{
xbt_dynar_t comms;
int i, size, index;
- int* map;
+ int *map;
index = MPI_UNDEFINED;
- if(count > 0) {
+ if (count > 0) {
// First check for already completed requests
- for(i = 0; i < count; i++) {
- if(requests[i] != MPI_REQUEST_NULL && requests[i]->complete) {
+ for (i = 0; i < count; i++) {
+ if (requests[i] != MPI_REQUEST_NULL && requests[i]->complete) {
index = i;
smpi_mpi_wait(&requests[index], status);
break;
}
}
- if(index == MPI_UNDEFINED) {
+ if (index == MPI_UNDEFINED) {
// Otherwise, wait for a request to complete
comms = xbt_dynar_new(sizeof(smx_comm_t), NULL);
map = xbt_new(int, count);
size = 0;
DEBUG0("Wait for one of");
- for(i = 0; i < count; i++) {
- if(requests[i] != MPI_REQUEST_NULL && requests[i]->complete == 0) {
+ for (i = 0; i < count; i++) {
+ if (requests[i] != MPI_REQUEST_NULL && requests[i]->complete == 0) {
print_request(" ", requests[i]);
xbt_dynar_push(comms, &requests[i]->pair);
map[size] = i;
size++;
}
}
- if(size > 0) {
+ if (size > 0) {
index = SIMIX_network_waitany(comms);
index = map[index];
finish_wait(&requests[index], status);
return index;
}
-void smpi_mpi_waitall(int count, MPI_Request requests[], MPI_Status status[]) {
+void smpi_mpi_waitall(int count, MPI_Request requests[],
+ MPI_Status status[])
+{
int index;
MPI_Status stat;
- while(count > 0) {
+ while (count > 0) {
index = smpi_mpi_waitany(count, requests, &stat);
- if(index == MPI_UNDEFINED) {
+ if (index == MPI_UNDEFINED) {
break;
}
- if(status != MPI_STATUS_IGNORE) {
+ if (status != MPI_STATUS_IGNORE) {
memcpy(&status[index], &stat, sizeof(stat));
}
// FIXME: check this -v
}
}
-int smpi_mpi_waitsome(int incount, MPI_Request requests[], int* indices, MPI_Status status[]) {
+int smpi_mpi_waitsome(int incount, MPI_Request requests[], int *indices,
+ MPI_Status status[])
+{
int i, count;
count = 0;
- for(i = 0; i < incount; i++) {
- if(requests[i] != MPI_REQUEST_NULL && requests[i]->complete) {
- smpi_mpi_wait(&requests[i], status != MPI_STATUS_IGNORE ? &status[i] : MPI_STATUS_IGNORE);
+ for (i = 0; i < incount; i++) {
+ if (requests[i] != MPI_REQUEST_NULL && requests[i]->complete) {
+ smpi_mpi_wait(&requests[i],
+ status !=
+ MPI_STATUS_IGNORE ? &status[i] : MPI_STATUS_IGNORE);
indices[count] = i;
count++;
}
return count;
}
-void smpi_mpi_bcast(void* buf, int count, MPI_Datatype datatype, int root, MPI_Comm comm) {
+void smpi_mpi_bcast(void *buf, int count, MPI_Datatype datatype, int root,
+ MPI_Comm comm)
+{
// arity=2: a binary tree, arity=4 seem to be a good setting (see P2P-MPI))
nary_tree_bcast(buf, count, datatype, root, comm, 4);
}
-void smpi_mpi_barrier(MPI_Comm comm) {
+void smpi_mpi_barrier(MPI_Comm comm)
+{
// arity=2: a binary tree, arity=4 seem to be a good setting (see P2P-MPI))
nary_tree_barrier(comm, 4);
}
-void smpi_mpi_gather(void* sendbuf, int sendcount, MPI_Datatype sendtype, void* recvbuf, int recvcount, MPI_Datatype recvtype, int root, MPI_Comm comm) {
+void smpi_mpi_gather(void *sendbuf, int sendcount, MPI_Datatype sendtype,
+ void *recvbuf, int recvcount, MPI_Datatype recvtype,
+ int root, MPI_Comm comm)
+{
int system_tag = 666;
int rank, size, src, index, sendsize, recvsize;
- MPI_Request* requests;
+ MPI_Request *requests;
rank = smpi_comm_rank(comm);
size = smpi_comm_size(comm);
- if(rank != root) {
+ if (rank != root) {
// Send buffer to root
smpi_mpi_send(sendbuf, sendcount, sendtype, root, system_tag, comm);
} else {
sendsize = smpi_datatype_size(sendtype);
recvsize = smpi_datatype_size(recvtype);
// Local copy from root
- memcpy(&((char*)recvbuf)[root * recvcount * recvsize], sendbuf, sendcount * sendsize * sizeof(char));
+ memcpy(&((char *) recvbuf)[root * recvcount * recvsize], sendbuf,
+ sendcount * sendsize * sizeof(char));
// Receive buffers from senders
requests = xbt_new(MPI_Request, size - 1);
index = 0;
- for(src = 0; src < size; src++) {
- if(src != root) {
- requests[index] = smpi_irecv_init(&((char*)recvbuf)[src * recvcount * recvsize], recvcount, recvtype, src, system_tag, comm);
+ for (src = 0; src < size; src++) {
+ if (src != root) {
+ requests[index] = smpi_irecv_init(&((char *) recvbuf)
+ [src * recvcount * recvsize],
+ recvcount, recvtype, src,
+ system_tag, comm);
index++;
}
}
}
}
-void smpi_mpi_gatherv(void* sendbuf, int sendcount, MPI_Datatype sendtype, void* recvbuf, int* recvcounts, int* displs, MPI_Datatype recvtype, int root, MPI_Comm comm) {
+void smpi_mpi_gatherv(void *sendbuf, int sendcount, MPI_Datatype sendtype,
+ void *recvbuf, int *recvcounts, int *displs,
+ MPI_Datatype recvtype, int root, MPI_Comm comm)
+{
int system_tag = 666;
int rank, size, src, index, sendsize;
- MPI_Request* requests;
+ MPI_Request *requests;
rank = smpi_comm_rank(comm);
size = smpi_comm_size(comm);
- if(rank != root) {
+ if (rank != root) {
// Send buffer to root
smpi_mpi_send(sendbuf, sendcount, sendtype, root, system_tag, comm);
} else {
sendsize = smpi_datatype_size(sendtype);
// Local copy from root
- memcpy(&((char*)recvbuf)[displs[root]], sendbuf, sendcount * sendsize * sizeof(char));
+ memcpy(&((char *) recvbuf)[displs[root]], sendbuf,
+ sendcount * sendsize * sizeof(char));
// Receive buffers from senders
requests = xbt_new(MPI_Request, size - 1);
index = 0;
- for(src = 0; src < size; src++) {
- if(src != root) {
- requests[index] = smpi_irecv_init(&((char*)recvbuf)[displs[src]], recvcounts[src], recvtype, src, system_tag, comm);
+ for (src = 0; src < size; src++) {
+ if (src != root) {
+ requests[index] =
+ smpi_irecv_init(&((char *) recvbuf)[displs[src]],
+ recvcounts[src], recvtype, src, system_tag,
+ comm);
index++;
}
}
}
}
-void smpi_mpi_allgather(void* sendbuf, int sendcount, MPI_Datatype sendtype, void* recvbuf, int recvcount, MPI_Datatype recvtype, MPI_Comm comm) {
+void smpi_mpi_allgather(void *sendbuf, int sendcount,
+ MPI_Datatype sendtype, void *recvbuf,
+ int recvcount, MPI_Datatype recvtype,
+ MPI_Comm comm)
+{
int system_tag = 666;
int rank, size, other, index, sendsize, recvsize;
- MPI_Request* requests;
+ MPI_Request *requests;
rank = smpi_comm_rank(comm);
size = smpi_comm_size(comm);
sendsize = smpi_datatype_size(sendtype);
recvsize = smpi_datatype_size(recvtype);
// Local copy from self
- memcpy(&((char*)recvbuf)[rank * recvcount * recvsize], sendbuf, sendcount * sendsize * sizeof(char));
+ memcpy(&((char *) recvbuf)[rank * recvcount * recvsize], sendbuf,
+ sendcount * sendsize * sizeof(char));
// Send/Recv buffers to/from others;
requests = xbt_new(MPI_Request, 2 * (size - 1));
index = 0;
- for(other = 0; other < size; other++) {
- if(other != rank) {
- requests[index] = smpi_isend_init(sendbuf, sendcount, sendtype, other, system_tag, comm);
+ for (other = 0; other < size; other++) {
+ if (other != rank) {
+ requests[index] =
+ smpi_isend_init(sendbuf, sendcount, sendtype, other, system_tag,
+ comm);
index++;
- requests[index] = smpi_irecv_init(&((char*)recvbuf)[other * recvcount * recvsize], recvcount, recvtype, other, system_tag, comm);
+ requests[index] = smpi_irecv_init(&((char *) recvbuf)
+ [other * recvcount * recvsize],
+ recvcount, recvtype, other,
+ system_tag, comm);
index++;
}
}
xbt_free(requests);
}
-void smpi_mpi_allgatherv(void* sendbuf, int sendcount, MPI_Datatype sendtype, void* recvbuf, int* recvcounts, int* displs, MPI_Datatype recvtype, MPI_Comm comm) {
+void smpi_mpi_allgatherv(void *sendbuf, int sendcount,
+ MPI_Datatype sendtype, void *recvbuf,
+ int *recvcounts, int *displs,
+ MPI_Datatype recvtype, MPI_Comm comm)
+{
int system_tag = 666;
int rank, size, other, index, sendsize, recvsize;
- MPI_Request* requests;
+ MPI_Request *requests;
rank = smpi_comm_rank(comm);
size = smpi_comm_size(comm);
sendsize = smpi_datatype_size(sendtype);
recvsize = smpi_datatype_size(recvtype);
// Local copy from self
- memcpy(&((char*)recvbuf)[displs[rank]], sendbuf, sendcount * sendsize * sizeof(char));
+ memcpy(&((char *) recvbuf)[displs[rank]], sendbuf,
+ sendcount * sendsize * sizeof(char));
// Send buffers to others;
requests = xbt_new(MPI_Request, 2 * (size - 1));
index = 0;
- for(other = 0; other < size; other++) {
- if(other != rank) {
- requests[index] = smpi_isend_init(sendbuf, sendcount, sendtype, other, system_tag, comm);
+ for (other = 0; other < size; other++) {
+ if (other != rank) {
+ requests[index] =
+ smpi_isend_init(sendbuf, sendcount, sendtype, other, system_tag,
+ comm);
index++;
- requests[index] = smpi_irecv_init(&((char*)recvbuf)[displs[other]], recvcounts[other], recvtype, other, system_tag, comm);
+ requests[index] =
+ smpi_irecv_init(&((char *) recvbuf)[displs[other]],
+ recvcounts[other], recvtype, other, system_tag,
+ comm);
index++;
}
}
xbt_free(requests);
}
-void smpi_mpi_scatter(void* sendbuf, int sendcount, MPI_Datatype sendtype, void* recvbuf, int recvcount, MPI_Datatype recvtype, int root, MPI_Comm comm) {
+void smpi_mpi_scatter(void *sendbuf, int sendcount, MPI_Datatype sendtype,
+ void *recvbuf, int recvcount, MPI_Datatype recvtype,
+ int root, MPI_Comm comm)
+{
int system_tag = 666;
int rank, size, dst, index, sendsize, recvsize;
- MPI_Request* requests;
+ MPI_Request *requests;
rank = smpi_comm_rank(comm);
size = smpi_comm_size(comm);
- if(rank != root) {
+ if (rank != root) {
// Recv buffer from root
- smpi_mpi_recv(recvbuf, recvcount, recvtype, root, system_tag, comm, MPI_STATUS_IGNORE);
+ smpi_mpi_recv(recvbuf, recvcount, recvtype, root, system_tag, comm,
+ MPI_STATUS_IGNORE);
} else {
sendsize = smpi_datatype_size(sendtype);
recvsize = smpi_datatype_size(recvtype);
// Local copy from root
- memcpy(recvbuf, &((char*)sendbuf)[root * sendcount * sendsize], recvcount * recvsize * sizeof(char));
+ memcpy(recvbuf, &((char *) sendbuf)[root * sendcount * sendsize],
+ recvcount * recvsize * sizeof(char));
// Send buffers to receivers
requests = xbt_new(MPI_Request, size - 1);
index = 0;
- for(dst = 0; dst < size; dst++) {
- if(dst != root) {
- requests[index] = smpi_isend_init(&((char*)sendbuf)[dst * sendcount * sendsize], sendcount, sendtype, dst, system_tag, comm);
+ for (dst = 0; dst < size; dst++) {
+ if (dst != root) {
+ requests[index] = smpi_isend_init(&((char *) sendbuf)
+ [dst * sendcount * sendsize],
+ sendcount, sendtype, dst,
+ system_tag, comm);
index++;
}
}
}
}
-void smpi_mpi_scatterv(void* sendbuf, int* sendcounts, int* displs, MPI_Datatype sendtype, void* recvbuf, int recvcount, MPI_Datatype recvtype, int root, MPI_Comm comm) {
+void smpi_mpi_scatterv(void *sendbuf, int *sendcounts, int *displs,
+ MPI_Datatype sendtype, void *recvbuf, int recvcount,
+ MPI_Datatype recvtype, int root, MPI_Comm comm)
+{
int system_tag = 666;
int rank, size, dst, index, sendsize, recvsize;
- MPI_Request* requests;
+ MPI_Request *requests;
rank = smpi_comm_rank(comm);
size = smpi_comm_size(comm);
- if(rank != root) {
+ if (rank != root) {
// Recv buffer from root
- smpi_mpi_recv(recvbuf, recvcount, recvtype, root, system_tag, comm, MPI_STATUS_IGNORE);
+ smpi_mpi_recv(recvbuf, recvcount, recvtype, root, system_tag, comm,
+ MPI_STATUS_IGNORE);
} else {
sendsize = smpi_datatype_size(sendtype);
recvsize = smpi_datatype_size(recvtype);
// Local copy from root
- memcpy(recvbuf, &((char*)sendbuf)[displs[root]], recvcount * recvsize * sizeof(char));
+ memcpy(recvbuf, &((char *) sendbuf)[displs[root]],
+ recvcount * recvsize * sizeof(char));
// Send buffers to receivers
requests = xbt_new(MPI_Request, size - 1);
index = 0;
- for(dst = 0; dst < size; dst++) {
- if(dst != root) {
- requests[index] = smpi_isend_init(&((char*)sendbuf)[displs[dst]], sendcounts[dst], sendtype, dst, system_tag, comm);
+ for (dst = 0; dst < size; dst++) {
+ if (dst != root) {
+ requests[index] =
+ smpi_isend_init(&((char *) sendbuf)[displs[dst]],
+ sendcounts[dst], sendtype, dst, system_tag,
+ comm);
index++;
}
}
}
}
-void smpi_mpi_reduce(void* sendbuf, void* recvbuf, int count, MPI_Datatype datatype, MPI_Op op, int root, MPI_Comm comm) {
+void smpi_mpi_reduce(void *sendbuf, void *recvbuf, int count,
+ MPI_Datatype datatype, MPI_Op op, int root,
+ MPI_Comm comm)
+{
int system_tag = 666;
int rank, size, src, index, datasize;
- MPI_Request* requests;
- void** tmpbufs;
+ MPI_Request *requests;
+ void **tmpbufs;
rank = smpi_comm_rank(comm);
size = smpi_comm_size(comm);
- if(rank != root) {
+ if (rank != root) {
// Send buffer to root
smpi_mpi_send(sendbuf, count, datatype, root, system_tag, comm);
} else {
// Receive buffers from senders
//TODO: make a MPI_barrier here ?
requests = xbt_new(MPI_Request, size - 1);
- tmpbufs = xbt_new(void*, size - 1);
+ tmpbufs = xbt_new(void *, size - 1);
index = 0;
- for(src = 0; src < size; src++) {
- if(src != root) {
+ for (src = 0; src < size; src++) {
+ if (src != root) {
tmpbufs[index] = xbt_malloc(count * datasize);
- requests[index] = smpi_irecv_init(tmpbufs[index], count, datatype, src, system_tag, comm);
+ requests[index] =
+ smpi_irecv_init(tmpbufs[index], count, datatype, src,
+ system_tag, comm);
index++;
}
}
// Wait for completion of irecv's.
smpi_mpi_startall(size - 1, requests);
- for(src = 0; src < size - 1; src++) {
+ for (src = 0; src < size - 1; src++) {
index = smpi_mpi_waitany(size - 1, requests, MPI_STATUS_IGNORE);
- if(index == MPI_UNDEFINED) {
+ if (index == MPI_UNDEFINED) {
break;
}
smpi_op_apply(op, tmpbufs[index], recvbuf, &count, &datatype);
}
- for(index = 0; index < size - 1; index++) {
+ for (index = 0; index < size - 1; index++) {
xbt_free(tmpbufs[index]);
}
xbt_free(tmpbufs);
}
}
-void smpi_mpi_allreduce(void* sendbuf, void* recvbuf, int count, MPI_Datatype datatype, MPI_Op op, MPI_Comm comm) {
+void smpi_mpi_allreduce(void *sendbuf, void *recvbuf, int count,
+ MPI_Datatype datatype, MPI_Op op, MPI_Comm comm)
+{
smpi_mpi_reduce(sendbuf, recvbuf, count, datatype, op, 0, comm);
smpi_mpi_bcast(recvbuf, count, datatype, 0, comm);
*/
}
-void smpi_mpi_scan(void* sendbuf, void* recvbuf, int count, MPI_Datatype datatype, MPI_Op op, MPI_Comm comm) {
+void smpi_mpi_scan(void *sendbuf, void *recvbuf, int count,
+ MPI_Datatype datatype, MPI_Op op, MPI_Comm comm)
+{
int system_tag = 666;
int rank, size, other, index, datasize;
int total;
- MPI_Request* requests;
- void** tmpbufs;
+ MPI_Request *requests;
+ void **tmpbufs;
rank = smpi_comm_rank(comm);
size = smpi_comm_size(comm);
// Send/Recv buffers to/from others;
total = rank + (size - (rank + 1));
requests = xbt_new(MPI_Request, total);
- tmpbufs = xbt_new(void*, rank);
+ tmpbufs = xbt_new(void *, rank);
index = 0;
- for(other = 0; other < rank; other++) {
+ for (other = 0; other < rank; other++) {
tmpbufs[index] = xbt_malloc(count * datasize);
- requests[index] = smpi_irecv_init(tmpbufs[index], count, datatype, other, system_tag, comm);
+ requests[index] =
+ smpi_irecv_init(tmpbufs[index], count, datatype, other, system_tag,
+ comm);
index++;
}
- for(other = rank + 1; other < size; other++) {
- requests[index] = smpi_isend_init(sendbuf, count, datatype, other, system_tag, comm);
+ for (other = rank + 1; other < size; other++) {
+ requests[index] =
+ smpi_isend_init(sendbuf, count, datatype, other, system_tag, comm);
index++;
}
// Wait for completion of all comms.
smpi_mpi_startall(size - 1, requests);
- for(other = 0; other < total; other++) {
+ for (other = 0; other < total; other++) {
index = smpi_mpi_waitany(size - 1, requests, MPI_STATUS_IGNORE);
- if(index == MPI_UNDEFINED) {
+ if (index == MPI_UNDEFINED) {
break;
}
- if(index < rank) {
+ if (index < rank) {
// #Request is below rank: it's a irecv
smpi_op_apply(op, tmpbufs[index], recvbuf, &count, &datatype);
}
}
- for(index = 0; index < size - 1; index++) {
+ for (index = 0; index < size - 1; index++) {
xbt_free(tmpbufs[index]);
}
xbt_free(tmpbufs);
