From: pini <pini@48e7efb5-ca39-0410-a469-dd3cf9ba447f>
Date: Thu, 25 Mar 2010 14:41:50 +0000 (+0000)
Subject: More MPI calls support in SMPI
X-Git-Tag: SVN~362
X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/commitdiff_plain/a3cfaa2faa67ffc56086239c68bc548fc48f3e62

More MPI calls support in SMPI

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/simgrid/simgrid/trunk@7378 48e7efb5-ca39-0410-a469-dd3cf9ba447f
---

diff --git a/include/smpi/smpi.h b/include/smpi/smpi.h
index a4a815a0f8..4fe9a6d836 100644
--- a/include/smpi/smpi.h
+++ b/include/smpi/smpi.h
@@ -23,6 +23,7 @@ SG_BEGIN_DECL()
 
 #define SMPI_RAND_SEED 5
 #define MPI_ANY_SOURCE -1
+#define MPI_PROC_NULL -2
 #define MPI_ANY_TAG -1
 #define MPI_UNDEFINED -1
 
@@ -45,6 +46,8 @@ SG_BEGIN_DECL()
 #define MPI_UNEQUAL   2
 #define MPI_CONGRUENT 3
 
+#define MPI_WTIME_IS_GLOBAL 1
+
 typedef ptrdiff_t MPI_Aint;
 typedef long long MPI_Offset;
 
@@ -149,8 +152,12 @@ XBT_PUBLIC(int) MPI_Is_thread_main(int* flag);
 XBT_PUBLIC(int) MPI_Abort(MPI_Comm comm, int errorcode);
 XBT_PUBLIC(double) MPI_Wtime(void);
 
+XBT_PUBLIC(int) MPI_Address(void *location, MPI_Aint *address);
+
+XBT_PUBLIC(int) MPI_Type_free(MPI_Datatype* datatype);
 XBT_PUBLIC(int) MPI_Type_size(MPI_Datatype datatype, size_t* size);
 XBT_PUBLIC(int) MPI_Type_get_extent(MPI_Datatype datatype, MPI_Aint* lb, MPI_Aint* extent);
+XBT_PUBLIC(int) MPI_Type_extent(MPI_Datatype datatype, MPI_Aint* extent);
 XBT_PUBLIC(int) MPI_Type_lb(MPI_Datatype datatype, MPI_Aint* disp);
 XBT_PUBLIC(int) MPI_Type_ub(MPI_Datatype datatype, MPI_Aint* disp);
 
@@ -206,6 +213,7 @@ XBT_PUBLIC(int) MPI_Scatter(void* sendbuf, int sendcount, MPI_Datatype sendtype,
 XBT_PUBLIC(int) MPI_Scatterv(void* sendbuf, int* sendcounts, int* displs, MPI_Datatype sendtype, void* recvbuf, int recvcount, MPI_Datatype recvtype, int root, MPI_Comm comm);
 XBT_PUBLIC(int) MPI_Reduce(void* sendbuf, void* recvbuf, int count, MPI_Datatype datatype, MPI_Op op, int root, MPI_Comm comm);
 XBT_PUBLIC(int) MPI_Allreduce(void* sendbuf, void* recvbuf, int count, MPI_Datatype datatype, MPI_Op op, MPI_Comm comm);
+XBT_PUBLIC(int) MPI_Scan(void* sendbuf, void* recvbuf, int count, MPI_Datatype datatype, MPI_Op op, MPI_Comm comm);
 XBT_PUBLIC(int) MPI_Reduce_scatter(void* sendbuf, void* recvbuf, int* recvcounts, MPI_Datatype datatype, MPI_Op op, MPI_Comm comm);
 XBT_PUBLIC(int) MPI_Alltoall(void* sendbuf, int sendcount, MPI_Datatype sendtype, void* recvbuf, int recvcount, MPI_Datatype recvtype, MPI_Comm comm);
 XBT_PUBLIC(int) MPI_Alltoallv(void* sendbuf, int* sendcounts, int* senddisps, MPI_Datatype sendtype, void* recvbuf, int *recvcounts, int* recvdisps, MPI_Datatype recvtype, MPI_Comm comm);
diff --git a/src/smpi/private.h b/src/smpi/private.h
index bc1580e55c..be53ddaaea 100644
--- a/src/smpi/private.h
+++ b/src/smpi/private.h
@@ -83,6 +83,7 @@ void smpi_mpi_scatter(void* sendbuf, int sendcount, MPI_Datatype sendtype, void*
 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_reduce(void* sendbuf, void* recvbuf, int count, MPI_Datatype datatype, MPI_Op op, int root, MPI_Comm comm);
 void smpi_mpi_allreduce(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);
 
 void nary_tree_bcast(void* buf, int count, MPI_Datatype datatype, int root, MPI_Comm comm, int arity);
 void nary_tree_barrier(MPI_Comm comm, int arity);
diff --git a/src/smpi/smpi_base.c b/src/smpi/smpi_base.c
index a48592d841..a85dcd5be4 100644
--- a/src/smpi/smpi_base.c
+++ b/src/smpi/smpi_base.c
@@ -545,3 +545,47 @@ FIXME: buggy implementation
   xbt_free(requests);
 */
 }
+
+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;
+ 
+  rank = smpi_comm_rank(comm);
+  size = smpi_comm_size(comm);
+  datasize = smpi_datatype_size(datatype);
+  // Local copy from self
+  memcpy(recvbuf, sendbuf, count * datasize * sizeof(char)); 
+  // Send/Recv buffers to/from others;
+  total = rank + (size - (rank + 1));
+  requests = xbt_new(MPI_Request, total);
+  tmpbufs = xbt_new(void*, rank);
+  index = 0;
+  for(other = 0; other < rank; other++) {
+    tmpbufs[index] = xbt_malloc(count * datasize);
+    requests[index] = smpi_mpi_irecv(tmpbufs[index], count, datatype, other, system_tag, comm);
+    index++;
+  }
+  for(other = rank + 1; other < size; other++) {
+    requests[index] = smpi_mpi_isend(sendbuf, count, datatype, other, system_tag, comm);
+    index++;
+  }
+  // Wait for completion of all comms.
+  for(other = 0; other < total; other++) {
+    index = smpi_mpi_waitany(size - 1, requests, MPI_STATUS_IGNORE);
+    if(index == MPI_UNDEFINED) {
+      break;
+    }
+    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++) {
+    xbt_free(tmpbufs[index]);
+  }
+  xbt_free(tmpbufs);
+  xbt_free(requests);
+}
diff --git a/src/smpi/smpi_mpi.c b/src/smpi/smpi_mpi.c
index 3dda18f396..aab96e300c 100644
--- a/src/smpi/smpi_mpi.c
+++ b/src/smpi/smpi_mpi.c
@@ -73,6 +73,33 @@ double MPI_Wtime(void) {
   return time;
 }
 
+int MPI_Address(void *location, MPI_Aint *address) {
+  int retval;
+
+  smpi_bench_end(-1, NULL);
+  if(!address) {
+    retval = MPI_ERR_ARG;
+  } else {
+    *address = (MPI_Aint)location;
+  }
+  smpi_bench_begin(-1, NULL);
+  return retval;
+}
+
+int MPI_Type_free(MPI_Datatype* datatype) {
+  int retval;
+
+  smpi_bench_end(-1, NULL);
+  if(!datatype) {
+    retval = MPI_ERR_ARG;
+  } else {
+    // FIXME: always fail for now
+    retval = MPI_ERR_TYPE;
+  }
+  smpi_bench_begin(-1, NULL);
+  return retval;
+}
+
 int MPI_Type_size(MPI_Datatype datatype, size_t* size) {
   int retval;
 
@@ -104,6 +131,22 @@ int MPI_Type_get_extent(MPI_Datatype datatype, MPI_Aint* lb, MPI_Aint* extent) {
   return retval;
 }
 
+int MPI_Type_extent(MPI_Datatype datatype, MPI_Aint* extent) {
+  int retval;
+  MPI_Aint dummy;
+
+  smpi_bench_end(-1, NULL);
+  if(datatype == MPI_DATATYPE_NULL) {
+    retval = MPI_ERR_TYPE;
+  } else if(extent == NULL) {
+    retval = MPI_ERR_ARG;
+  } else {
+    retval = smpi_datatype_extent(datatype, &dummy, extent);
+  }
+  smpi_bench_begin(-1, NULL);
+  return retval;
+}
+
 int MPI_Type_lb(MPI_Datatype datatype, MPI_Aint* disp) {
   int retval;
 
@@ -1017,6 +1060,25 @@ int MPI_Allreduce(void* sendbuf, void* recvbuf, int count, MPI_Datatype datatype
   return retval;
 }
 
+int MPI_Scan(void* sendbuf, void* recvbuf, int count, MPI_Datatype datatype, MPI_Op op, MPI_Comm comm) {
+  int retval;
+  int rank = comm != MPI_COMM_NULL ? smpi_comm_rank(comm) : -1;
+
+  smpi_bench_end(rank, "Scan");
+  if(comm == MPI_COMM_NULL) {
+    retval = MPI_ERR_COMM;
+  } else if(datatype == MPI_DATATYPE_NULL) {
+    retval = MPI_ERR_TYPE;
+  } else if(op == MPI_OP_NULL) {
+    retval = MPI_ERR_OP;
+  } else {
+    smpi_mpi_scan(sendbuf, recvbuf, count, datatype, op, comm);
+    retval = MPI_SUCCESS;
+  }
+  smpi_bench_begin(rank, "Scan");
+  return retval;
+}
+
 int MPI_Reduce_scatter(void* sendbuf, void* recvbuf, int* recvcounts, MPI_Datatype datatype, MPI_Op op, MPI_Comm comm) {
   int retval, i, size, count;
   int* displs;