-/* Copyright (c) 2007-2013. The SimGrid Team.
+/* Copyright (c) 2007-2014. The SimGrid Team.
* All rights reserved. */
/* This program is free software; you can redistribute it and/or modify it
XBT_LOG_NEW_DEFAULT_SUBCATEGORY(smpi_base, smpi, "Logging specific to SMPI (base)");
-static int match_recv(void* a, void* b, smx_action_t ignored) {
+static int match_recv(void* a, void* b, smx_synchro_t ignored) {
MPI_Request ref = (MPI_Request)a;
MPI_Request req = (MPI_Request)b;
XBT_DEBUG("Trying to match a recv of src %d against %d, tag %d against %d",ref->src,req->src, ref->tag, req->tag);
}else return 0;
}
-static int match_send(void* a, void* b,smx_action_t ignored) {
+static int match_send(void* a, void* b,smx_synchro_t ignored) {
MPI_Request ref = (MPI_Request)a;
MPI_Request req = (MPI_Request)b;
XBT_DEBUG("Trying to match a send of src %d against %d, tag %d against %d",ref->src,req->src, ref->tag, req->tag);
xbt_dynar_t smpi_or_values = NULL;
xbt_dynar_t smpi_ois_values = NULL;
+double smpi_wtime_sleep = 0.0;
+double smpi_iprobe_sleep = 1e-4;
+double smpi_test_sleep = 1e-4;
+
+
// Methods used to parse and store the values for timing injections in smpi
// These are taken from surf/network.c and generalized to have more factors
// These methods should be merged with those in surf/network.c (moved somewhere in xbt ?)
static int factor_cmp(const void *pa, const void *pb)
{
- return (((s_smpi_factor_t*)pa)->factor > ((s_smpi_factor_t*)pb)->factor);
+ return (((s_smpi_factor_t*)pa)->factor > ((s_smpi_factor_t*)pb)->factor) ? 1 :
+ (((s_smpi_factor_t*)pa)->factor < ((s_smpi_factor_t*)pb)->factor) ? -1 : 0;
}
char *value = NULL;
unsigned int iter = 0;
s_smpi_factor_t fact;
+ fact.nb_values=0;
int i=0;
xbt_dynar_t smpi_factor, radical_elements, radical_elements2 = NULL;
smpi_factor = xbt_dynar_new(sizeof(s_smpi_factor_t), NULL);
radical_elements = xbt_str_split(smpi_coef_string, ";");
xbt_dynar_foreach(radical_elements, iter, value) {
- fact.nb_values=0;
+ memset(&fact, 0, sizeof(s_smpi_factor_t));
radical_elements2 = xbt_str_split(value, ":");
if (xbt_dynar_length(radical_elements2) <2 || xbt_dynar_length(radical_elements2) > 5)
xbt_die("Malformed radical for smpi factor!");
double current=0.0;
xbt_dynar_foreach(smpi_os_values, iter, fact) {
if (size <= fact.factor) {
- XBT_DEBUG("os : %lf <= %ld return %f", size, fact.factor, current);
+ XBT_DEBUG("os : %f <= %ld return %f", size, fact.factor, current);
return current;
}else{
current=fact.values[0]+fact.values[1]*size;
}
}
- XBT_DEBUG("os : %lf > %ld return %f", size, fact.factor, current);
+ XBT_DEBUG("os : %f > %ld return %f", size, fact.factor, current);
return current;
}
double current=0.0;
xbt_dynar_foreach(smpi_ois_values, iter, fact) {
if (size <= fact.factor) {
- XBT_DEBUG("ois : %lf <= %ld return %f", size, fact.factor, current);
+ XBT_DEBUG("ois : %f <= %ld return %f", size, fact.factor, current);
return current;
}else{
current=fact.values[0]+fact.values[1]*size;
}
}
- XBT_DEBUG("ois : %lf > %ld return %f", size, fact.factor, current);
+ XBT_DEBUG("ois : %f > %ld return %f", size, fact.factor, current);
return current;
}
double current=0.0;
xbt_dynar_foreach(smpi_or_values, iter, fact) {
if (size <= fact.factor) {
- XBT_DEBUG("or : %lf <= %ld return %f", size, fact.factor, current);
+ XBT_DEBUG("or : %f <= %ld return %f", size, fact.factor, current);
return current;
}else
current=fact.values[0]+fact.values[1]*size;
}
- XBT_DEBUG("or : %lf > %ld return %f", size, fact.factor, current);
+ XBT_DEBUG("or : %f > %ld return %f", size, fact.factor, current);
return current;
}
+double smpi_mpi_wtime(){
+ double time;
+ if (smpi_process_initialized() && !smpi_process_finalized() && !smpi_process_get_sampling()) {
+ smpi_bench_end();
+ time = SIMIX_get_clock();
+ //to avoid deadlocks if called too many times
+ if(smpi_wtime_sleep > 0) simcall_process_sleep(smpi_wtime_sleep);
+ smpi_bench_begin();
+ } else {
+ time = SIMIX_get_clock();
+ }
+ return time;
+}
+
static MPI_Request build_request(void *buf, int count,
MPI_Datatype datatype, int src, int dst,
int tag, MPI_Comm comm, unsigned flags)
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 smpi_mpi_send_init(void *buf, int count, MPI_Datatype datatype,
int dst, int tag, MPI_Comm comm)
{
- MPI_Request request = NULL;
+ 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 smpi_mpi_ssend_init(void *buf, int count, MPI_Datatype datatype,
int dst, int tag, MPI_Comm comm)
{
- MPI_Request request = NULL;
+ 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 smpi_mpi_recv_init(void *buf, int count, MPI_Datatype datatype,
int src, int tag, MPI_Comm comm)
{
- MPI_Request request = NULL;
+ 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;
}
void smpi_mpi_start(MPI_Request request)
{
smx_rdv_t mailbox;
+
+ xbt_assert(!request->action, "Cannot (re)start a non-finished communication");
+ request->flags &= ~PREPARED;
+ request->flags &= ~FINISHED;
+ request->refcount++;
- xbt_assert(!request->action,
- "Cannot (re)start a non-finished communication");
- if(request->flags & PREPARED)request->flags &= ~PREPARED;
- if(request->flags & RECV) {
+ 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")){
+ //We have to check both mailboxes (because SSEND messages are sent to the large mbox). begin with the more appropriate one : the small one.
mailbox = smpi_process_mailbox_small();
- else
- mailbox = smpi_process_mailbox();
- // we make a copy here, as the size is modified by simix, and we may reuse the request in another receive later
- request->real_size=request->size;
- smpi_datatype_use(request->old_type);
- smpi_comm_use(request->comm);
- request->action = simcall_comm_irecv(mailbox, request->buf, &request->real_size, &match_recv, request);
+ XBT_DEBUG("Is there a corresponding send already posted in the small mailbox %p (in case of SSEND)?", mailbox);
+ XBT_DEBUG("Is there a corresponding send already posted the small mailbox %p (in case of SSEND)?", mailbox);
+ smx_synchro_t action = simcall_comm_iprobe(mailbox, 0, request->src,request->tag, &match_recv, (void*)request);
+
+ if(action ==NULL){
+ mailbox = smpi_process_mailbox();
+ XBT_DEBUG("No, nothing in the small mailbox test the other one : %p", mailbox);
+ action = simcall_comm_iprobe(mailbox, 0, request->src,request->tag, &match_recv, (void*)request);
+ if(action ==NULL){
+ XBT_DEBUG("Still nothing, switch back to the small mailbox : %p", mailbox);
+ XBT_DEBUG("Still notching, switch back to the small mailbox : %p", mailbox);
+ mailbox = smpi_process_mailbox_small();
+ }
+ }else{
+ XBT_DEBUG("yes there was something for us in the large mailbox");
+ }
+ }else{
+ mailbox = smpi_process_mailbox_small();
+ XBT_DEBUG("Is there a corresponding send already posted the small mailbox?");
+ smx_synchro_t action = simcall_comm_iprobe(mailbox, 0, request->src,request->tag, &match_recv, (void*)request);
+
+ if(action ==NULL){
+ XBT_DEBUG("No, nothing in the permanent receive mailbox");
+ mailbox = smpi_process_mailbox();
+ }else{
+ XBT_DEBUG("yes there was something for us in the small mailbox");
+ }
+ }
//integrate pseudo-timing for buffering of small messages, do not bother to execute the simcall if 0
double sleeptime = request->detached ? smpi_or(request->size) : 0.0;
if(sleeptime!=0.0){
simcall_process_sleep(sleeptime);
- XBT_DEBUG("receiving size of %zu : sleep %lf ", request->size, smpi_or(request->size));
+ XBT_DEBUG("receiving size of %zu : sleep %f ", request->size, smpi_or(request->size));
}
+
+ // we make a copy here, as the size is modified by simix, and we may reuse the request in another receive later
+ request->real_size=request->size;
+ smpi_datatype_use(request->old_type);
+ smpi_comm_use(request->comm);
+ request->action = simcall_comm_irecv(mailbox, request->buf,
+ &request->real_size, &match_recv,
+ !smpi_process_get_replaying()? &smpi_comm_copy_buffer_callback
+ : &smpi_comm_null_copy_buffer_callback,
+ request, -1.0);
+ XBT_DEBUG("recv simcall posted");
+
} else {
- int receiver = request->dst;//smpi_group_index(smpi_comm_group(request->comm), request->dst);
+ int receiver = 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);
}
#endif
-/* if(receiver == MPI_UNDEFINED) {*/
-/* XBT_WARN("Trying to send a message to a wrong rank");*/
-/* return;*/
-/* }*/
print_request("New send", request);
- if (request->size < sg_cfg_get_int("smpi/async_small_thres")) { // eager mode
- mailbox = smpi_process_remote_mailbox_small(receiver);
+
+ //if we are giving back the control to the user without waiting for completion, we have to inject timings
+ 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){
+ simcall_process_sleep(sleeptime);
+ XBT_DEBUG("sending size of %zu : sleep %f ", request->size, smpi_os(request->size));
+ }
+
+ if (request->flags & RMA || request->size < sg_cfg_get_int("smpi/async_small_thres")) { // eager mode
+ mailbox = smpi_process_remote_mailbox(receiver);
+ XBT_DEBUG("Is there a corresponding recv already posted in the large mailbox %p?", mailbox);
+ smx_synchro_t action = simcall_comm_iprobe(mailbox, 1,request->dst, request->tag, &match_send, (void*)request);
+ if(action ==NULL){
+ if (! (request->flags & SSEND)){
+ mailbox = smpi_process_remote_mailbox_small(receiver);
+ XBT_DEBUG("No, nothing in the large mailbox, message is to be sent on the small one %p", mailbox);
+ } else{
+ mailbox = smpi_process_remote_mailbox_small(receiver);
+ XBT_DEBUG("SSEND : Is there a corresponding recv already posted in the small mailbox %p?", mailbox);
+ action = simcall_comm_iprobe(mailbox, 1,request->dst, request->tag, &match_send, (void*)request);
+ if(action ==NULL){
+ XBT_DEBUG("No, we are first, send to large mailbox");
+ mailbox = smpi_process_remote_mailbox(receiver);
+ }
+ }
+ }else{
+ XBT_DEBUG("Yes there was something for us in the large mailbox");
+ }
}else{
- XBT_DEBUG("Send request %p is not in the permanent receive mailbox (buf: %p)",request,request->buf);
mailbox = smpi_process_remote_mailbox(receiver);
+ XBT_DEBUG("Send request %p is in the large mailbox %p (buf: %p)",mailbox, request,request->buf);
}
+
+ 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 (oldbuf && request->size!=0){
- request->buf = xbt_malloc(request->size);
- memcpy(request->buf,oldbuf,request->size);
+ if (!smpi_process_get_replaying() && oldbuf && request->size!=0){
+ 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 ");
+ smpi_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
request->real_size=request->size;
smpi_datatype_use(request->old_type);
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;
- 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){
- simcall_process_sleep(sleeptime);
- XBT_DEBUG("sending size of %zu : sleep %lf ", 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,
- &smpi_mpi_request_free_voidp, // how to free the userdata if a detached send fails
+ &xbt_free_f, // how to free the userdata if a detached send fails
+ !smpi_process_get_replaying()? &smpi_comm_copy_buffer_callback
+ : &smpi_comm_null_copy_buffer_callback,
request,
// detach if msg size < eager/rdv switch limit
request->detached);
+ XBT_DEBUG("send simcall posted");
+
+
#ifdef HAVE_TRACING
/* FIXME: detached sends are not traceable (request->action == NULL) */
void smpi_mpi_startall(int count, MPI_Request * requests)
{
int i;
+ if(requests==NULL) return;
for(i = 0; i < count; i++) {
smpi_mpi_start(requests[i]);
*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;
+ 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;
}
MPI_Request smpi_mpi_isend(void *buf, int count, MPI_Datatype datatype,
int dst, int tag, MPI_Comm comm)
{
- MPI_Request request = NULL;
+ 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);
smpi_mpi_start(request);
MPI_Request smpi_mpi_issend(void *buf, int count, MPI_Datatype datatype,
int dst, int tag, MPI_Comm comm)
{
- MPI_Request request = NULL;
+ 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 | SSEND | SEND);
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 = NULL;
+ 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;
}
MPI_Request smpi_mpi_irecv(void *buf, int count, MPI_Datatype datatype,
int src, int tag, MPI_Comm comm)
{
- MPI_Request request = NULL;
+ 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);
smpi_mpi_start(request);
void smpi_mpi_recv(void *buf, int count, MPI_Datatype datatype, int src,
int tag, MPI_Comm comm, MPI_Status * status)
{
- MPI_Request request = NULL;
+ MPI_Request request = NULL; /* MC needs the comm to be set to NULL during the call */
request = smpi_mpi_irecv(buf, count, datatype, src, tag, comm);
smpi_mpi_wait(&request, status);
request = NULL;
void smpi_mpi_send(void *buf, int count, MPI_Datatype datatype, int dst,
int tag, MPI_Comm comm)
{
- MPI_Request request = NULL;
+ 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 | SEND);
void smpi_mpi_ssend(void *buf, int count, MPI_Datatype datatype,
int dst, int tag, MPI_Comm comm)
{
- MPI_Request request = NULL;
+ 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 | SSEND | SEND);
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];
static void finish_wait(MPI_Request * request, MPI_Status * status)
{
MPI_Request req = *request;
- if(status != MPI_STATUS_IGNORE)
- smpi_empty_status(status);
+ smpi_empty_status(status);
- if(!(req->detached && req->flags & SEND) && !(req->flags & PREPARED)){
- if(status != MPI_STATUS_IGNORE) {
+ 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);
status->MPI_TAG = req->tag == MPI_ANY_TAG ? req->real_tag : req->tag;
print_request("Finishing", req);
MPI_Datatype datatype = req->old_type;
- if(datatype->has_subtype == 1){
+ if((req->flags & ACCUMULATE) || (datatype->has_subtype == 1)){
+ if (!smpi_process_get_replaying()){
+ 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 ");
+ smpi_switch_data_segment(smpi_process_index());
+ }
+ }
+
+ 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 & RECV) {
- subtype->unserialize(req->buf, req->old_buf, req->real_size/smpi_datatype_size(datatype) , datatype->substruct);
+ s_smpi_subtype_t *subtype = datatype->substruct;
+ if(req->flags & RECV)
+ 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 if(req->flags & RECV){//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);
}
#ifdef HAVE_TRACING
- if (TRACE_smpi_view_internals()) {
- if(req->flags & RECV){
- int rank = smpi_process_index();
- int src_traced = (req->src == MPI_ANY_SOURCE ? req->real_src : req->src);
- TRACE_smpi_recv(rank, src_traced, rank);
- }
+ if (TRACE_smpi_view_internals()) {
+ if(req->flags & RECV){
+ int rank = smpi_process_index();
+ int src_traced = (req->src == MPI_ANY_SOURCE ? req->real_src : req->src);
+ TRACE_smpi_recv(rank, src_traced, rank);
}
+ }
#endif
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) {
int flag;
//assume that request is not MPI_REQUEST_NULL (filtered in PMPI_Test or smpi_mpi_testall before)
- if ((*request)->action == NULL)
- flag = 1;
- else
- flag = simcall_comm_test((*request)->action);
- if(flag) {
- finish_wait(request, status);
- *request = MPI_REQUEST_NULL;
- }else{
- smpi_empty_status(status);
+
+ //to avoid deadlocks
+ //multiplier to the sleeptime, to increase speed of execution, each failed test will increase it
+ static int nsleeps = 1;
+ if(smpi_test_sleep > 0) simcall_process_sleep(nsleeps*smpi_test_sleep);
+
+ smpi_empty_status(status);
+ flag = 1;
+ if (!((*request)->flags & PREPARED)) {
+ if ((*request)->action != NULL)
+ flag = simcall_comm_test((*request)->action);
+ if (flag) {
+ finish_wait(request, status);
+ nsleeps=1;//reset the number of sleeps we will do next time
+ if (*request != MPI_REQUEST_NULL && !((*request)->flags & PERSISTENT))
+ *request = MPI_REQUEST_NULL;
+ }else{
+ nsleeps++;
+ }
}
return flag;
}
*index = MPI_UNDEFINED;
flag = 0;
- comms = xbt_dynar_new(sizeof(smx_action_t), NULL);
+ comms = xbt_dynar_new(sizeof(smx_synchro_t), NULL);
map = xbt_new(int, count);
size = 0;
for(i = 0; i < count; i++) {
- if((requests[i]!=MPI_REQUEST_NULL) && requests[i]->action) {
+ if ((requests[i] != MPI_REQUEST_NULL) && requests[i]->action &&
+ !(requests[i]->flags & PREPARED)) {
xbt_dynar_push(comms, &requests[i]->action);
map[size] = i;
size++;
}
}
if(size > 0) {
+ //multiplier to the sleeptime, to increase speed of execution, each failed testany will increase it
+ static int nsleeps = 1;
+ if(smpi_test_sleep > 0) simcall_process_sleep(nsleeps*smpi_test_sleep);
+
i = simcall_comm_testany(comms);
// not MPI_UNDEFINED, as this is a simix return code
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;
+ nsleeps=1;
+ }else{
+ nsleeps++;
}
}else{
//all requests are null or inactive, return true
int flag=1;
int i;
for(i=0; i<count; i++){
- if(requests[i]!= MPI_REQUEST_NULL){
+ if (requests[i] != MPI_REQUEST_NULL && !(requests[i]->flags & PREPARED)) {
if (smpi_mpi_test(&requests[i], pstat)!=1){
flag=0;
}else{
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");
//multiplier to the sleeptime, to increase speed of execution, each failed iprobe will increase it
static int nsleeps = 1;
-
- simcall_process_sleep(sleeptime);
-
+ if(smpi_iprobe_sleep > 0) simcall_process_sleep(nsleeps*smpi_iprobe_sleep);
// behave like a receive, but don't do it
smx_rdv_t mailbox;
if (sg_cfg_get_int("smpi/async_small_thres")>0){
mailbox = smpi_process_mailbox_small();
XBT_DEBUG("trying to probe the perm recv mailbox");
- request->action = simcall_comm_iprobe(mailbox, request->src, request->tag, &match_recv, (void*)request);
+ request->action = simcall_comm_iprobe(mailbox, 0, request->src, request->tag, &match_recv, (void*)request);
}
if (request->action==NULL){
mailbox = smpi_process_mailbox();
XBT_DEBUG("trying to probe the other mailbox");
- request->action = simcall_comm_iprobe(mailbox, request->src, request->tag, &match_recv, (void*)request);
+ request->action = simcall_comm_iprobe(mailbox, 0, request->src,request->tag, &match_recv, (void*)request);
}
if(request->action){
void smpi_mpi_wait(MPI_Request * request, MPI_Status * status)
{
print_request("Waiting", *request);
+ if ((*request)->flags & PREPARED) {
+ smpi_empty_status(status);
+ return;
+ }
+
if ((*request)->action != NULL) { // this is not a detached send
simcall_comm_wait((*request)->action, -1.0);
- }
-#ifdef HAVE_MC
- if(MC_is_active())
+ if((MC_is_active() || MC_record_replay_is_active()) && (*request)->action)
(*request)->action->comm.dst_data = NULL; // dangling pointer : dst_data is freed with a wait, need to set it to NULL for system state comparison
-#endif
+ }
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:
}
index = MPI_UNDEFINED;
if(count > 0) {
// Wait for a request to complete
- comms = xbt_dynar_new(sizeof(smx_action_t), NULL);
+ comms = xbt_dynar_new(sizeof(smx_synchro_t), NULL);
map = xbt_new(int, count);
size = 0;
XBT_DEBUG("Wait for one of %d", count);
for(i = 0; i < count; i++) {
- if(requests[i] != MPI_REQUEST_NULL) {
+ 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;
}
}
xbt_free(map);
//tag invalid requests in the set
if (status != MPI_STATUSES_IGNORE) {
for (c = 0; c < count; c++) {
- if (requests[c] == MPI_REQUEST_NULL || requests[c]->dst == MPI_PROC_NULL) {
+ if (requests[c] == MPI_REQUEST_NULL || requests[c]->dst == MPI_PROC_NULL ||
+ (requests[c]->flags & PREPARED)) {
smpi_empty_status(&status[c]);
} else if (requests[c]->src == MPI_PROC_NULL) {
smpi_empty_status(&status[c]);
}
}
for(c = 0; c < count; c++) {
- if (MC_is_active()) {
+
+ if (MC_is_active() || MC_record_replay_is_active()) {
smpi_mpi_wait(&requests[c], pstat);
index = c;
} else {
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);
}
}
displs[i] = count;
count += recvcounts[i];
}
- tmpbuf=(void*)xbt_malloc(count*smpi_datatype_get_extent(datatype));
+ tmpbuf=(void*)smpi_get_tmp_sendbuffer(count*smpi_datatype_get_extent(datatype));
+
mpi_coll_reduce_fun(sendbuf, tmpbuf, count, datatype, op, 0, comm);
smpi_mpi_scatterv(tmpbuf, recvcounts, displs, datatype, recvbuf,
recvcounts[rank], datatype, 0, comm);
xbt_free(displs);
- xbt_free(tmpbuf);
+ smpi_free_tmp_buffer(tmpbuf);
}
void smpi_mpi_gatherv(void *sendbuf, int sendcount, MPI_Datatype sendtype,
// 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);
}
}
char* sendtmpbuf = (char*) sendbuf;
if( sendbuf == MPI_IN_PLACE ) {
- sendtmpbuf = (char *)xbt_malloc(count*smpi_datatype_get_extent(datatype));
+ sendtmpbuf = (char *)smpi_get_tmp_sendbuffer(count*smpi_datatype_get_extent(datatype));
smpi_datatype_copy(recvbuf, count, datatype,sendtmpbuf, count, datatype);
}
if(src != root) {
// FIXME: possibly overkill we we have contiguous/noncontiguous data
// mapping...
- tmpbufs[index] = xbt_malloc(count * dataext);
+ if (!smpi_process_get_replaying())
+ tmpbufs[index] = xbt_malloc(count * dataext);
+ else
+ tmpbufs[index] = smpi_get_tmp_sendbuffer(count * dataext);
requests[index] =
smpi_irecv_init(tmpbufs[index], count, datatype, src,
system_tag, comm);
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 < size - 1; index++) {
- xbt_free(tmpbufs[index]);
- }
+ for(index = 0; index < size - 1; index++) {
+ smpi_free_tmp_buffer(tmpbufs[index]);
+ }
xbt_free(tmpbufs);
xbt_free(requests);
if( sendbuf == MPI_IN_PLACE ) {
- xbt_free(sendtmpbuf);
+ smpi_free_tmp_buffer(sendtmpbuf);
}
}
}
for(other = 0; other < rank; other++) {
// FIXME: possibly overkill we we have contiguous/noncontiguous data
// mapping...
- tmpbufs[index] = xbt_malloc(count * dataext);
+ tmpbufs[index] = smpi_get_tmp_sendbuffer(count * dataext);
requests[index] =
smpi_irecv_init(tmpbufs[index], count, datatype, other, system_tag,
comm);
}
}
for(index = 0; index < rank; index++) {
- xbt_free(tmpbufs[index]);
+ smpi_free_tmp_buffer(tmpbufs[index]);
+ }
+ for(index = 0; index < size-1; index++) {
+ smpi_mpi_request_free(&requests[index]);
}
xbt_free(tmpbufs);
xbt_free(requests);
for(other = 0; other < rank; other++) {
// FIXME: possibly overkill we we have contiguous/noncontiguous data
// mapping...
- tmpbufs[index] = xbt_malloc(count * dataext);
+ tmpbufs[index] = smpi_get_tmp_sendbuffer(count * dataext);
requests[index] =
smpi_irecv_init(tmpbufs[index], count, datatype, other, system_tag,
comm);
}
}
for(index = 0; index < rank; index++) {
- xbt_free(tmpbufs[index]);
+ smpi_free_tmp_buffer(tmpbufs[index]);
+ }
+ for(index = 0; index < size-1; index++) {
+ smpi_mpi_request_free(&requests[index]);
}
xbt_free(tmpbufs);
xbt_free(requests);
