"Implement" MPI_File_set_view, MPI_File_get_view.

[simgrid.git] / src / smpi / include / smpi_file.hpp

diff --git a/src/smpi/include/smpi_file.hpp b/src/smpi/include/smpi_file.hpp
index cf97e82..f0ff13a 100644 (file)
--- a/src/smpi/include/smpi_file.hpp
+++ b/src/smpi/include/smpi_file.hpp
@@ -10,6 +10,7 @@
 #include "smpi_comm.hpp"
 #include "smpi_coll.hpp"
 #include "smpi_datatype.hpp"
+#include "smpi_errhandler.hpp"
 #include "smpi_info.hpp"
 #include  <algorithm>
 
@@ -26,8 +27,13 @@ class File{
   s4u::MutexPtr shared_mutex_;
   MPI_Win win_;
   char* list_;
+  MPI_Errhandler errhandler_;
+  MPI_Datatype etype_;
+  MPI_Datatype filetype_;
+  std::string datarep_;
+
   public:
-  File(MPI_Comm comm, char *filename, int amode, MPI_Info info);
+  File(MPI_Comm comm, const char *filename, int amode, MPI_Info info);
   File(const File&) = delete;
   File& operator=(const File&) = delete;
   ~File();
@@ -39,17 +45,21 @@ class File{
   int sync();
   int seek(MPI_Offset offset, int whence);
   int seek_shared(MPI_Offset offset, int whence);
+  int set_view(MPI_Offset disp, MPI_Datatype etype, MPI_Datatype filetype, const char *datarep, MPI_Info info);
+  int get_view(MPI_Offset *disp, MPI_Datatype *etype, MPI_Datatype *filetype, char *datarep);
   MPI_Info info();
   void set_info( MPI_Info info);
   static int read(MPI_File fh, void *buf, int count,MPI_Datatype datatype, MPI_Status *status);
   static int read_shared(MPI_File fh, void *buf, int count,MPI_Datatype datatype, MPI_Status *status);
   static int read_ordered(MPI_File fh, void *buf, int count,MPI_Datatype datatype, MPI_Status *status);
   static int write(MPI_File fh, void *buf, int count,MPI_Datatype datatype, MPI_Status *status);
-  static int write_shared(MPI_File fh, void *buf, int count,MPI_Datatype datatype, MPI_Status *status);
-  static int write_ordered(MPI_File fh, void *buf, int count,MPI_Datatype datatype, MPI_Status *status);
+  static int write_shared(MPI_File fh, const void *buf, int count,MPI_Datatype datatype, MPI_Status *status);
+  static int write_ordered(MPI_File fh, const void *buf, int count,MPI_Datatype datatype, MPI_Status *status);
   template <int (*T)(MPI_File, void *, int, MPI_Datatype, MPI_Status *)> int op_all(void *buf, int count,MPI_Datatype datatype, MPI_Status *status);
   static int close(MPI_File *fh);
-  static int del(char *filename, MPI_Info info);
+  static int del(const char *filename, MPI_Info info);
+  MPI_Errhandler errhandler();
+  void set_errhandler( MPI_Errhandler errhandler);
 };
 
   /* Read_all, Write_all : loosely based on */
@@ -69,8 +79,8 @@ class File{
     MPI_Offset max_offset = (min_offset + count * datatype->size());//cheating, as we don't care about exact data location, we can skip extent
     MPI_Offset* min_offsets = new MPI_Offset[size];
     MPI_Offset* max_offsets = new MPI_Offset[size];
-    simgrid::smpi::Colls::allgather(&min_offset, 1, MPI_OFFSET, min_offsets, 1, MPI_OFFSET, comm_);
-    simgrid::smpi::Colls::allgather(&max_offset, 1, MPI_OFFSET, max_offsets, 1, MPI_OFFSET, comm_);
+    simgrid::smpi::colls::allgather(&min_offset, 1, MPI_OFFSET, min_offsets, 1, MPI_OFFSET, comm_);
+    simgrid::smpi::colls::allgather(&max_offset, 1, MPI_OFFSET, max_offsets, 1, MPI_OFFSET, comm_);
     MPI_Offset min=min_offset;
     MPI_Offset max=max_offset;
     MPI_Offset tot= 0;
@@ -97,7 +107,8 @@ class File{
       delete[] min_offsets;
       delete[] max_offsets;
       //contiguous. Just have each proc perform its read
-      status->count=count * datatype->size();
+      if(status != MPI_STATUS_IGNORE)
+        status->count=count * datatype->size();
       return T(this,buf,count,datatype, status);
     }
 
@@ -116,7 +127,7 @@ class File{
       if((my_chunk_start>=min_offsets[i] && my_chunk_start < max_offsets[i])||
           ((my_chunk_end<=max_offsets[i]) && my_chunk_end> min_offsets[i])){
         send_sizes[i]=(std::min(max_offsets[i]-1, my_chunk_end-1)-std::max(min_offsets[i], my_chunk_start));
-        //store min and max offest to actually read
+        // store min and max offset to actually read
         min_offset=std::min(min_offset, min_offsets[i]);
         total_sent+=send_sizes[i];
         XBT_CDEBUG(smpi_pmpi, "will have to send %d bytes to %d", send_sizes[i], i);
@@ -160,22 +171,23 @@ class File{
     }
     XBT_CDEBUG(smpi_pmpi, "will have to access %lld from my chunk", totreads);
 
-    char* sendbuf= static_cast<char *>(smpi_get_tmp_sendbuffer(total_sent));
+    unsigned char* sendbuf = smpi_get_tmp_sendbuffer(total_sent);
 
     if(totreads>0){
       seek(min_offset, MPI_SEEK_SET);
       T(this,sendbuf,totreads/datatype->size(),datatype, status);
     }
-    simgrid::smpi::Colls::alltoall(send_sizes, 1, MPI_INT, recv_sizes, 1, MPI_INT, comm_);
+    simgrid::smpi::colls::alltoall(send_sizes, 1, MPI_INT, recv_sizes, 1, MPI_INT, comm_);
     int total_recv=0;
     for(int i=0;i<size;i++){
       recv_disps[i]=total_recv;
       total_recv+=recv_sizes[i];
     }
     //Set buf value to avoid copying dumb data
-    simgrid::smpi::Colls::alltoallv(sendbuf, send_sizes, send_disps, MPI_BYTE,
-                              buf, recv_sizes, recv_disps, MPI_BYTE, comm_);
-    status->count=count * datatype->size();
+    simgrid::smpi::colls::alltoallv(sendbuf, send_sizes, send_disps, MPI_BYTE, buf, recv_sizes, recv_disps, MPI_BYTE,
+                                    comm_);
+    if(status!=MPI_STATUS_IGNORE)
+      status->count=count * datatype->size();
     smpi_free_tmp_buffer(sendbuf);
     delete[] send_sizes;
     delete[] recv_sizes;