X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/47158a9055045f3bce00e77b9010e6a8b0e23802..845590d7b4f0790c34191697d1b6c28d50d1ccbd:/src/smpi/mpi/smpi_request.cpp

diff --git a/src/smpi/mpi/smpi_request.cpp b/src/smpi/mpi/smpi_request.cpp
index 5bbd84ea23..5cf3a4990b 100644
--- a/src/smpi/mpi/smpi_request.cpp
+++ b/src/smpi/mpi/smpi_request.cpp
@@ -2,7 +2,8 @@
 
 /* This program is free software; you can redistribute it and/or modify it
  * under the terms of the license (GNU LGPL) which comes with this package. */
-
+#include "simgrid/s4u/Mutex.hpp"
+#include "simgrid/s4u/ConditionVariable.hpp"
 #include "smpi_request.hpp"
 
 #include "mc/mc.h"
@@ -15,10 +16,10 @@
 #include "smpi_op.hpp"
 #include "src/kernel/activity/CommImpl.hpp"
 #include "src/mc/mc_replay.hpp"
-#include "src/simix/ActorImpl.hpp"
 #include "src/smpi/include/smpi_actor.hpp"
 #include "xbt/config.hpp"
 
+
 #include <algorithm>
 
 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(smpi_request, smpi, "Logging specific to SMPI (request)");
@@ -35,8 +36,8 @@ extern void (*smpi_comm_copy_data_callback)(simgrid::kernel::activity::CommImpl*
 namespace simgrid{
 namespace smpi{
 
-Request::Request(void* buf, int count, MPI_Datatype datatype, int src, int dst, int tag, MPI_Comm comm, unsigned flags)
-    : buf_(buf), old_type_(datatype), src_(src), dst_(dst), tag_(tag), comm_(comm), flags_(flags)
+Request::Request(void* buf, int count, MPI_Datatype datatype, int src, int dst, int tag, MPI_Comm comm, unsigned flags, MPI_Op op)
+    : buf_(buf), old_type_(datatype), src_(src), dst_(dst), tag_(tag), comm_(comm), flags_(flags), op_(op)
 {
   void *old_buf = nullptr;
 // FIXME Handle the case of a partial shared malloc.
@@ -57,6 +58,8 @@ Request::Request(void* buf, int count, MPI_Datatype datatype, int src, int dst,
   size_ = datatype->size() * count;
   datatype->ref();
   comm_->ref();
+  if(op != MPI_REPLACE && op != MPI_OP_NULL)
+    op_->ref();
   action_          = nullptr;
   detached_        = 0;
   detached_sender_ = nullptr;
@@ -68,44 +71,10 @@ Request::Request(void* buf, int count, MPI_Datatype datatype, int src, int dst,
     refcount_ = 1;
   else
     refcount_ = 0;
-  op_   = MPI_REPLACE;
   cancelled_ = 0;
-}
-
-MPI_Comm Request::comm(){
-  return comm_;
-}
-
-int Request::src(){
-  return src_;
-}
-
-int Request::dst(){
-  return dst_;
-}
-
-int Request::tag(){
-  return tag_;
-}
-
-int Request::flags(){
-  return flags_;
-}
-
-int Request::detached(){
-  return detached_;
-}
-
-MPI_Datatype Request::type(){
-  return old_type_;
-}
-
-size_t Request::size(){
-  return size_;
-}
-
-size_t Request::real_size(){
-  return real_size_;
+  generalized_funcs=nullptr;
+  nbc_requests_=nullptr;
+  nbc_requests_size_=0;
 }
 
 void Request::ref(){
@@ -121,11 +90,18 @@ void Request::unref(MPI_Request* request)
       xbt_die("Whoops, wrong refcount");
     }
     if((*request)->refcount_==0){
-        Datatype::unref((*request)->old_type_);
+      if ((*request)->flags_ & MPI_REQ_GENERALIZED){
+        ((*request)->generalized_funcs)->free_fn(((*request)->generalized_funcs)->extra_state);
+      }else{
         Comm::unref((*request)->comm_);
-        (*request)->print_request("Destroying");
-        delete *request;
-        *request = MPI_REQUEST_NULL;
+        Datatype::unref((*request)->old_type_);
+      }
+      if ((*request)->op_!=MPI_REPLACE && (*request)->op_!=MPI_OP_NULL)
+        Op::unref(&(*request)->op_);
+
+      (*request)->print_request("Destroying");
+      delete *request;
+      *request = MPI_REQUEST_NULL;
     }else{
       (*request)->print_request("Decrementing");
     }
@@ -229,8 +205,7 @@ MPI_Request Request::rma_send_init(void *buf, int count, MPI_Datatype datatype,
     request      = new Request(buf == MPI_BOTTOM ? nullptr : buf, count, datatype, comm->group()->actor(src)->get_pid(),
                           comm->group()->actor(dst)->get_pid(), tag, comm,
                           MPI_REQ_RMA | MPI_REQ_NON_PERSISTENT | MPI_REQ_ISEND | MPI_REQ_SEND | MPI_REQ_PREPARED |
-                              MPI_REQ_ACCUMULATE);
-    request->op_ = op;
+                              MPI_REQ_ACCUMULATE, op);
   }
   return request;
 }
@@ -254,8 +229,7 @@ MPI_Request Request::rma_recv_init(void *buf, int count, MPI_Datatype datatype,
   }else{
     request      = new Request(buf == MPI_BOTTOM ? nullptr : buf, count, datatype, comm->group()->actor(src)->get_pid(),
                           comm->group()->actor(dst)->get_pid(), tag, comm,
-                          MPI_REQ_RMA | MPI_REQ_NON_PERSISTENT | MPI_REQ_RECV | MPI_REQ_PREPARED | MPI_REQ_ACCUMULATE);
-    request->op_ = op;
+                          MPI_REQ_RMA | MPI_REQ_NON_PERSISTENT | MPI_REQ_RECV | MPI_REQ_PREPARED | MPI_REQ_ACCUMULATE, op);
   }
   return request;
 }
@@ -361,7 +335,7 @@ void Request::sendrecv(void *sendbuf, int sendcount, MPI_Datatype sendtype,int d
 
 void Request::start()
 {
-  s4u::MailboxPtr mailbox;
+  s4u::Mailbox* mailbox;
 
   xbt_assert(action_ == nullptr, "Cannot (re-)start unfinished communication");
   flags_ &= ~MPI_REQ_PREPARED;
@@ -543,28 +517,59 @@ void Request::cancel()
     (boost::static_pointer_cast<simgrid::kernel::activity::CommImpl>(this->action_))->cancel();
 }
 
-int Request::test(MPI_Request * request, MPI_Status * status) {
+int Request::test(MPI_Request * request, MPI_Status * status, int* flag) {
   //assume that request is not MPI_REQUEST_NULL (filtered in PMPI_Test or testall before)
   // to avoid deadlocks if used as a break condition, such as
   //     while (MPI_Test(request, flag, status) && flag) dostuff...
   // because the time will not normally advance when only calls to MPI_Test are made -> deadlock
   // multiplier to the sleeptime, to increase speed of execution, each failed test will increase it
   static int nsleeps = 1;
+  int ret = MPI_SUCCESS;
+  
+  // Are we testing a request meant for non blocking collectives ?
+  // If so, test all the subrequests.
+  if ((*request)->nbc_requests_size_>0){
+    ret = testall((*request)->nbc_requests_size_, (*request)->nbc_requests_, flag, MPI_STATUSES_IGNORE);
+    if(*flag){
+      delete[] (*request)->nbc_requests_;
+      (*request)->nbc_requests_size_=0;
+      unref(request);
+    }
+    return ret;
+  }
+  
   if(smpi_test_sleep > 0)
     simcall_process_sleep(nsleeps*smpi_test_sleep);
 
+  MPI_Status* mystatus;
   Status::empty(status);
-  int flag = 1;
+  *flag = 1;
   if (((*request)->flags_ & MPI_REQ_PREPARED) == 0) {
     if ((*request)->action_ != nullptr){
       try{
-        flag = simcall_comm_test((*request)->action_);
+        *flag = simcall_comm_test((*request)->action_);
       }catch (xbt_ex& e) {
-        return 0;
+        *flag = 0;
+        return ret;
       }
     }
-    if (flag) {
+    if (*request != MPI_REQUEST_NULL && 
+        ((*request)->flags_ & MPI_REQ_GENERALIZED)
+        && !((*request)->flags_ & MPI_REQ_COMPLETE)) 
+      *flag=0;
+    if (*flag) {
       finish_wait(request,status);
+      if (*request != MPI_REQUEST_NULL && ((*request)->flags_ & MPI_REQ_GENERALIZED)){
+        if(status==MPI_STATUS_IGNORE){
+          mystatus=new MPI_Status();
+          Status::empty(mystatus);
+        }else{
+          mystatus=status;
+        }
+        ret = ((*request)->generalized_funcs)->query_fn(((*request)->generalized_funcs)->extra_state, mystatus);
+        if(status==MPI_STATUS_IGNORE) 
+          delete mystatus;
+      }
       nsleeps=1;//reset the number of sleeps we will do next time
       if (*request != MPI_REQUEST_NULL && ((*request)->flags_ & MPI_REQ_PERSISTENT) == 0)
         *request = MPI_REQUEST_NULL;
@@ -572,21 +577,27 @@ int Request::test(MPI_Request * request, MPI_Status * status) {
       nsleeps++;
     }
   }
-  return flag;
+  return ret;
 }
 
-int Request::testsome(int incount, MPI_Request requests[], int *indices, MPI_Status status[])
+int Request::testsome(int incount, MPI_Request requests[], int *count, int *indices, MPI_Status status[])
 {
-  int count = 0;
+  int ret = MPI_SUCCESS;
+  int error=0;
   int count_dead = 0;
+  int flag = 0;
   MPI_Status stat;
   MPI_Status *pstat = status == MPI_STATUSES_IGNORE ? MPI_STATUS_IGNORE : &stat;
 
+  *count = 0;
   for (int i = 0; i < incount; i++) {
     if (requests[i] != MPI_REQUEST_NULL) {
-      if (test(&requests[i], pstat)) {
+      ret = test(&requests[i], pstat, &flag);
+      if(ret!=MPI_SUCCESS)
+        error = 1;
+      if(flag) {
         indices[i] = 1;
-        count++;
+        (*count)++;
         if (status != MPI_STATUSES_IGNORE)
           status[i] = *pstat;
         if ((requests[i] != MPI_REQUEST_NULL) && (requests[i]->flags_ & MPI_REQ_NON_PERSISTENT))
@@ -596,19 +607,22 @@ int Request::testsome(int incount, MPI_Request requests[], int *indices, MPI_Sta
       count_dead++;
     }
   }
-  if(count_dead==incount)
-    return MPI_UNDEFINED;
-  else return count;
+  if(count_dead==incount)*count=MPI_UNDEFINED;
+  if(error!=0)
+    return MPI_ERR_IN_STATUS;
+  else
+    return MPI_SUCCESS;
 }
 
-int Request::testany(int count, MPI_Request requests[], int *index, MPI_Status * status)
+int Request::testany(int count, MPI_Request requests[], int *index, int* flag, MPI_Status * status)
 {
   std::vector<simgrid::kernel::activity::CommImpl*> comms;
   comms.reserve(count);
 
   int i;
-  int flag = 0;
-
+  *flag = 0;
+  int ret = MPI_SUCCESS;
+  MPI_Status* mystatus;
   *index = MPI_UNDEFINED;
 
   std::vector<int> map; /** Maps all matching comms back to their location in requests **/
@@ -631,36 +645,59 @@ int Request::testany(int count, MPI_Request requests[], int *index, MPI_Status *
     
     if (i != -1) { // -1 is not MPI_UNDEFINED but a SIMIX return code. (nothing matches)
       *index = map[i];
-      finish_wait(&requests[*index],status);
-      flag             = 1;
-      nsleeps          = 1;
-      if (requests[*index] != MPI_REQUEST_NULL && (requests[*index]->flags_ & MPI_REQ_NON_PERSISTENT)) {
-        requests[*index] = MPI_REQUEST_NULL;
+      if (requests[*index] != MPI_REQUEST_NULL && 
+          (requests[*index]->flags_ & MPI_REQ_GENERALIZED)
+          && !(requests[*index]->flags_ & MPI_REQ_COMPLETE)) {
+        *flag=0;
+      } else {
+        finish_wait(&requests[*index],status);
+      if (requests[*index] != MPI_REQUEST_NULL && (requests[*index]->flags_ & MPI_REQ_GENERALIZED)){
+        if(status==MPI_STATUS_IGNORE){
+          mystatus=new MPI_Status();
+          Status::empty(mystatus);
+        }else{
+          mystatus=status;
+        }
+        ret=(requests[*index]->generalized_funcs)->query_fn((requests[*index]->generalized_funcs)->extra_state, mystatus);
+        if(status==MPI_STATUS_IGNORE) 
+          delete mystatus;
       }
+
+        if (requests[*index] != MPI_REQUEST_NULL && (requests[*index]->flags_ & MPI_REQ_NON_PERSISTENT)) 
+          requests[*index] = MPI_REQUEST_NULL;
+        *flag=1;
+      }
+      nsleeps = 1;
     } else {
       nsleeps++;
     }
   } else {
       //all requests are null or inactive, return true
-      flag = 1;
+      *flag = 1;
       Status::empty(status);
   }
 
-  return flag;
+  return ret;
 }
 
-int Request::testall(int count, MPI_Request requests[], MPI_Status status[])
+int Request::testall(int count, MPI_Request requests[], int* outflag, MPI_Status status[])
 {
   MPI_Status stat;
   MPI_Status *pstat = status == MPI_STATUSES_IGNORE ? MPI_STATUS_IGNORE : &stat;
-  int flag=1;
+  int flag, error=0;
+  int ret=MPI_SUCCESS;
+  *outflag = 1;
   for(int i=0; i<count; i++){
     if (requests[i] != MPI_REQUEST_NULL && not(requests[i]->flags_ & MPI_REQ_PREPARED)) {
-      if (test(&requests[i], pstat)!=1){
+      ret = test(&requests[i], pstat, &flag);
+      if (flag){
         flag=0;
+        requests[i]=MPI_REQUEST_NULL;
       }else{
-          requests[i]=MPI_REQUEST_NULL;
+        *outflag=0;
       }
+      if (ret != MPI_SUCCESS) 
+        error = 1;
     }else{
       Status::empty(pstat);
     }
@@ -668,7 +705,10 @@ int Request::testall(int count, MPI_Request requests[], MPI_Status status[])
       status[i] = *pstat;
     }
   }
-  return flag;
+  if(error==1) 
+    return MPI_ERR_IN_STATUS;
+  else 
+    return MPI_SUCCESS;
 }
 
 void Request::probe(int source, int tag, MPI_Comm comm, MPI_Status* status){
@@ -707,7 +747,7 @@ void Request::iprobe(int source, int tag, MPI_Comm comm, int* flag, MPI_Status*
         ->wait();
   }
   // behave like a receive, but don't do it
-  s4u::MailboxPtr mailbox;
+  s4u::Mailbox* mailbox;
 
   request->print_request("New iprobe");
   // We have to test both mailboxes as we don't know if we will receive one one or another
@@ -757,7 +797,9 @@ void Request::finish_wait(MPI_Request* request, MPI_Status * status)
     return;
   }
 
-  if (not((req->detached_ != 0) && ((req->flags_ & MPI_REQ_SEND) != 0)) && ((req->flags_ & MPI_REQ_PREPARED) == 0)) {
+  if (not((req->detached_ != 0) && ((req->flags_ & MPI_REQ_SEND) != 0)) 
+  && ((req->flags_ & MPI_REQ_PREPARED) == 0)
+  && ((req->flags_ & MPI_REQ_GENERALIZED) == 0)) {
     if(status != MPI_STATUS_IGNORE) {
       int src = req->src_ == MPI_ANY_SOURCE ? req->real_src_ : req->src_;
       status->MPI_SOURCE = req->comm_->group()->rank(src);
@@ -817,12 +859,37 @@ void Request::finish_wait(MPI_Request* request, MPI_Status * status)
   unref(request);
 }
 
-void Request::wait(MPI_Request * request, MPI_Status * status)
+int Request::wait(MPI_Request * request, MPI_Status * status)
 {
+  int ret=MPI_SUCCESS;
+  // Are we waiting on a request meant for non blocking collectives ?
+  // If so, wait for all the subrequests.
+  if ((*request)->nbc_requests_size_>0){
+    ret = waitall((*request)->nbc_requests_size_, (*request)->nbc_requests_, MPI_STATUSES_IGNORE);
+    for (int i = 0; i < (*request)->nbc_requests_size_; i++) {
+      if((*request)->buf_!=nullptr && (*request)->nbc_requests_[i]!=MPI_REQUEST_NULL){//reduce case
+        void * buf=(*request)->nbc_requests_[i]->buf_;
+        if((*request)->old_type_->flags() & DT_FLAG_DERIVED)
+          buf=(*request)->nbc_requests_[i]->old_buf_;
+        if((*request)->op_!=MPI_OP_NULL){
+          int count=(*request)->size_/ (*request)->old_type_->size();
+          (*request)->op_->apply(buf, (*request)->buf_, &count, (*request)->old_type_);
+        }
+        smpi_free_tmp_buffer(buf);
+      }
+      if((*request)->nbc_requests_[i]!=MPI_REQUEST_NULL)
+        Request::unref(&((*request)->nbc_requests_[i]));
+    }
+    delete[] (*request)->nbc_requests_;
+    (*request)->nbc_requests_size_=0;
+    unref(request);
+    return ret;
+  }
+
   (*request)->print_request("Waiting");
   if ((*request)->flags_ & MPI_REQ_PREPARED) {
     Status::empty(status);
-    return;
+    return ret;
   }
 
   if ((*request)->action_ != nullptr){
@@ -834,10 +901,28 @@ void Request::wait(MPI_Request * request, MPI_Status * status)
       }
   }
 
+  if (*request != MPI_REQUEST_NULL && ((*request)->flags_ & MPI_REQ_GENERALIZED)){
+    MPI_Status* mystatus;
+    if(!((*request)->flags_ & MPI_REQ_COMPLETE)){
+      ((*request)->generalized_funcs)->mutex->lock();
+      ((*request)->generalized_funcs)->cond->wait(((*request)->generalized_funcs)->mutex);
+      ((*request)->generalized_funcs)->mutex->unlock();
+      }
+    if(status==MPI_STATUS_IGNORE){
+      mystatus=new MPI_Status();
+      Status::empty(mystatus);
+    }else{
+      mystatus=status;
+    }
+    ret = ((*request)->generalized_funcs)->query_fn(((*request)->generalized_funcs)->extra_state, mystatus);
+    if(status==MPI_STATUS_IGNORE) 
+      delete mystatus;
+  }
 
   finish_wait(request,status);
   if (*request != MPI_REQUEST_NULL && (((*request)->flags_ & MPI_REQ_NON_PERSISTENT) != 0))
     *request = MPI_REQUEST_NULL;
+  return ret;
 }
 
 int Request::waitany(int count, MPI_Request requests[], MPI_Status * status)
@@ -959,21 +1044,30 @@ int Request::waitall(int count, MPI_Request requests[], MPI_Status status[])
 int Request::waitsome(int incount, MPI_Request requests[], int *indices, MPI_Status status[])
 {
   int count = 0;
+  int flag = 0;
+  int index = 0;
   MPI_Status stat;
   MPI_Status *pstat = status == MPI_STATUSES_IGNORE ? MPI_STATUS_IGNORE : &stat;
 
+  index = waitany(incount, (MPI_Request*)requests, pstat);
+  if(index==MPI_UNDEFINED) return MPI_UNDEFINED;
+  if(status != MPI_STATUSES_IGNORE) {
+    status[count] = *pstat;
+  }
+  indices[count] = index;
+  count++;
   for (int i = 0; i < incount; i++) {
-    int index = waitany(incount, requests, pstat);
-    if(index!=MPI_UNDEFINED){
-      indices[count] = index;
-      count++;
-      if(status != MPI_STATUSES_IGNORE) {
-        status[index] = *pstat;
+    if((requests[i] != MPI_REQUEST_NULL)) {
+      test(&requests[i], pstat,&flag);
+      if (flag==1){
+        indices[count] = i;
+        if(status != MPI_STATUSES_IGNORE) {
+          status[count] = *pstat;
+        }
+        if (requests[i] != MPI_REQUEST_NULL && (requests[i]->flags_ & MPI_REQ_NON_PERSISTENT))
+          requests[i]=MPI_REQUEST_NULL;
+        count++;
       }
-      if (requests[index] != MPI_REQUEST_NULL && (requests[index]->flags_ & MPI_REQ_NON_PERSISTENT))
-        requests[index] = MPI_REQUEST_NULL;
-    }else{
-      return MPI_UNDEFINED;
     }
   }
   return count;
@@ -1005,5 +1099,72 @@ void Request::free_f(int id)
   }
 }
 
+
+int Request::get_status(MPI_Request req, int* flag, MPI_Status * status){
+  *flag=0;
+
+  if(req != MPI_REQUEST_NULL && req->action_ != nullptr) {
+    req->iprobe(req->src_, req->tag_, req->comm_, flag, status);
+    if(*flag)
+      return MPI_SUCCESS;
+  }
+  if (req != MPI_REQUEST_NULL && 
+     (req->flags_ & MPI_REQ_GENERALIZED)
+     && !(req->flags_ & MPI_REQ_COMPLETE)) {
+     *flag=0;
+    return MPI_SUCCESS;
+  }
+
+  *flag=1;
+  if(req != MPI_REQUEST_NULL &&
+     status != MPI_STATUS_IGNORE) {
+    int src = req->src_ == MPI_ANY_SOURCE ? req->real_src_ : req->src_;
+    status->MPI_SOURCE = req->comm_->group()->rank(src);
+    status->MPI_TAG = req->tag_ == MPI_ANY_TAG ? req->real_tag_ : req->tag_;
+    status->MPI_ERROR = req->truncated_ ? MPI_ERR_TRUNCATE : MPI_SUCCESS;
+    status->count = req->real_size_;
+  }
+  return MPI_SUCCESS;
+}
+
+int Request::grequest_start( MPI_Grequest_query_function *query_fn, MPI_Grequest_free_function *free_fn, MPI_Grequest_cancel_function *cancel_fn, void *extra_state, MPI_Request *request){
+
+  *request = new Request();
+  (*request)->flags_ |= MPI_REQ_GENERALIZED;
+  (*request)->flags_ |= MPI_REQ_PERSISTENT;
+  (*request)->refcount_ = 1;
+  ((*request)->generalized_funcs)=xbt_new0(s_smpi_mpi_generalized_request_funcs_t ,1);
+  ((*request)->generalized_funcs)->query_fn=query_fn;
+  ((*request)->generalized_funcs)->free_fn=free_fn;
+  ((*request)->generalized_funcs)->cancel_fn=cancel_fn;
+  ((*request)->generalized_funcs)->extra_state=extra_state;
+  ((*request)->generalized_funcs)->cond = simgrid::s4u::ConditionVariable::create();
+  ((*request)->generalized_funcs)->mutex = simgrid::s4u::Mutex::create();
+  return MPI_SUCCESS;
+}
+
+int Request::grequest_complete( MPI_Request request){
+  if ((!(request->flags_ & MPI_REQ_GENERALIZED)) || request->generalized_funcs->mutex==NULL) 
+    return MPI_ERR_REQUEST;
+  request->generalized_funcs->mutex->lock();
+  request->flags_ |= MPI_REQ_COMPLETE; // in case wait would be called after complete
+  request->generalized_funcs->cond->notify_one();
+  request->generalized_funcs->mutex->unlock();
+  return MPI_SUCCESS;
+}
+
+void Request::set_nbc_requests(MPI_Request* reqs, int size){
+  nbc_requests_=reqs;
+  nbc_requests_size_=size;
+}
+
+int Request::get_nbc_requests_size(){
+  return nbc_requests_size_;
+}
+
+MPI_Request* Request::get_nbc_requests(){
+  return nbc_requests_;
+}
+
 }
 }