From: Augustin Degomme <adegomme@users.noreply.github.com>
Date: Thu, 18 Apr 2019 11:40:58 +0000 (+0200)
Subject: Add some tests for io.
X-Git-Tag: v3.22.2~101^2~3
X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/commitdiff_plain/e0e373ee37eda6080ba4621403cc2adaff04d95d

Add some tests for io.
---

diff --git a/teshsuite/smpi/CMakeLists.txt b/teshsuite/smpi/CMakeLists.txt
index 800ae86f93..8dc3a021a0 100644
--- a/teshsuite/smpi/CMakeLists.txt
+++ b/teshsuite/smpi/CMakeLists.txt
@@ -8,7 +8,8 @@ if(enable_smpi)
   include_directories(BEFORE "${CMAKE_HOME_DIRECTORY}/include/smpi")
   foreach(x coll-allgather coll-allgatherv coll-allreduce coll-alltoall coll-alltoallv coll-barrier coll-bcast
             coll-gather coll-reduce coll-reduce-scatter coll-scatter macro-sample pt2pt-dsend pt2pt-pingpong
-            type-hvector type-indexed type-struct type-vector bug-17132 timers privatization )
+            type-hvector type-indexed type-struct type-vector bug-17132 timers privatization 
+            io-simple io-simple-at io-all io-shared io-ordered)
     add_executable       (${x}  EXCLUDE_FROM_ALL ${x}/${x}.c)
     target_link_libraries(${x}  simgrid)
     set_target_properties(${x}  PROPERTIES RUNTIME_OUTPUT_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/${x})
@@ -36,7 +37,8 @@ endif()
 foreach(x coll-allgather coll-allgatherv coll-allreduce coll-alltoall coll-alltoallv coll-barrier coll-bcast
     coll-gather coll-reduce coll-reduce-scatter coll-scatter macro-sample pt2pt-dsend pt2pt-pingpong
     type-hvector type-indexed type-struct type-vector bug-17132 timers privatization
-    macro-shared macro-partial-shared macro-partial-shared-communication)
+    macro-shared macro-partial-shared macro-partial-shared-communication
+    io-simple io-simple-at io-all io-shared io-ordered)
   set(tesh_files    ${tesh_files}    ${CMAKE_CURRENT_SOURCE_DIR}/${x}/${x}.tesh)
   set(teshsuite_src ${teshsuite_src} ${CMAKE_CURRENT_SOURCE_DIR}/${x}/${x}.c)
 endforeach()
@@ -63,7 +65,7 @@ if(enable_smpi)
 
   foreach(x coll-allgather coll-allgatherv coll-allreduce coll-alltoall coll-alltoallv coll-barrier coll-bcast
             coll-gather coll-reduce coll-reduce-scatter coll-scatter macro-sample pt2pt-dsend pt2pt-pingpong
-	    type-hvector type-indexed type-struct type-vector bug-17132 timers)
+	    type-hvector type-indexed type-struct type-vector bug-17132 timers io-simple io-simple-at io-all io-shared io-ordered)
     ADD_TESH_FACTORIES(tesh-smpi-${x} "thread;ucontext;raw;boost" --setenv platfdir=${CMAKE_HOME_DIRECTORY}/examples/platforms --setenv srcdir=${CMAKE_HOME_DIRECTORY}/examples/platforms --setenv bindir=${CMAKE_BINARY_DIR}/teshsuite/smpi/${x} --cd ${CMAKE_HOME_DIRECTORY}/teshsuite/smpi/${x} ${x}.tesh)
   endforeach()
 
diff --git a/teshsuite/smpi/io-all/io-all.c b/teshsuite/smpi/io-all/io-all.c
new file mode 100644
index 0000000000..56d95b3b27
--- /dev/null
+++ b/teshsuite/smpi/io-all/io-all.c
@@ -0,0 +1,74 @@
+#include "mpi.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <memory.h>
+
+/* Test reading and writing zero bytes (set status correctly) */
+
+int main( int argc, char *argv[] )
+{
+    int errs = 0;
+    int size, rank, i, *buf, count;
+    MPI_File fh;
+    MPI_Comm comm;
+    MPI_Status status;
+ 
+    MPI_Init( &argc, &argv );
+ 
+    comm = MPI_COMM_WORLD;
+    MPI_File_open( comm, (char*)"/scratch/lib/libsimgrid.so.3.6.2", MPI_MODE_RDWR | MPI_MODE_CREATE | MPI_MODE_DELETE_ON_CLOSE, MPI_INFO_NULL, &fh );
+    MPI_Comm_size( comm, &size );
+    MPI_Comm_rank( comm, &rank );
+    buf = (int *)malloc( 10+ size * sizeof(int) );
+    buf[0] = rank;
+ 
+    /* Write to file */
+    MPI_File_seek( fh, sizeof(int)*rank, MPI_SEEK_SET ); 
+    MPI_File_write_all( fh, buf, 1, MPI_INT, &status );
+    MPI_Get_count( &status, MPI_INT, &count );
+    if (count != 1) {
+        errs++;
+        fprintf( stderr, "Wrong count (%d) on write\n", count );fflush(stderr);
+    }
+    /* Write to file, overlapping */
+    MPI_File_seek( fh, sizeof(int)*rank, MPI_SEEK_SET ); 
+    MPI_File_write_all( fh, buf, 10, MPI_INT, &status );
+    MPI_Get_count( &status, MPI_INT, &count );
+    if (count != 10) {
+        errs++;
+        fprintf( stderr, "Wrong count (%d) on write\n", count );fflush(stderr);
+    }
+    /* Read nothing (check status) */
+    memset( &status, 0xff, sizeof(MPI_Status) );
+    MPI_File_read_all( fh, buf, 0, MPI_INT, &status );
+    MPI_Get_count( &status, MPI_INT, &count );
+    if (count != 0) {
+        errs++;
+        fprintf( stderr, "Count not zero (%d) on read\n", count );fflush(stderr);
+    }
+
+    /* Write nothing (check status) */
+    memset( &status, 0xff, sizeof(MPI_Status) );
+    MPI_File_write_all( fh, buf, 0, MPI_INT, &status );
+    if (count != 0) {
+        errs++;
+        fprintf( stderr, "Count not zero (%d) on write\n", count );fflush(stderr);
+    }
+
+    MPI_Barrier( comm );
+
+    MPI_File_seek( fh, sizeof(int)*rank, MPI_SEEK_SET );
+    for (i=0; i<size; i++) buf[i] = -1;
+    MPI_File_read_all( fh, buf, 10, MPI_INT, &status );
+    // if (buf[0] != rank) {
+        // errs++;
+        // fprintf( stderr, "%d: buf = %d\n", rank, buf[0] );fflush(stderr);
+    // }
+ 
+    free( buf );
+    MPI_File_close( &fh );
+ 
+    MPI_Finalize();
+    return errs;
+}
\ No newline at end of file
diff --git a/teshsuite/smpi/io-all/io-all.tesh b/teshsuite/smpi/io-all/io-all.tesh
new file mode 100644
index 0000000000..0a800a10e9
--- /dev/null
+++ b/teshsuite/smpi/io-all/io-all.tesh
@@ -0,0 +1,52 @@
+# Test for MPI_File_read and MPI_File_write
+! output sort
+$ ${bindir:=.}/../../../smpi_script/bin/smpirun -map -hostfile ../hostfile_io -platform ../../../examples/platforms/storage/remote_io.xml -np 4 --log=xbt_cfg.thres:critical --log=smpi_kernel.thres:warning --log=smpi_mpi.thres:error --log=smpi_io.thres:verbose "--log=root.fmt:[%10.6r]%e(%P@%h)%e%m%n" ${bindir:=.}/io-all
+> You requested to use 4 ranks, but there is only 2 processes in your hostfile...
+> [rank 0] -> bob
+> [rank 1] -> carl
+> [rank 2] -> bob
+> [rank 3] -> carl
+> [  0.000282] (0@bob) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 0
+> [  0.000358] (2@bob) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 8
+> [  0.000534] (3@carl) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 12
+> [  0.000534] (1@carl) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 4
+> [  0.000737] (3@carl) Write in MPI_File /scratch/lib/libsimgrid.so.3.6.2, 4 bytes written, readsize 4 bytes, movesize 4
+> [  0.000737] (3@carl) Position after write in MPI_File /scratch/lib/libsimgrid.so.3.6.2 : 16
+> [  0.000737] (3@carl) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 12
+> [  0.000737] (1@carl) Write in MPI_File /scratch/lib/libsimgrid.so.3.6.2, 4 bytes written, readsize 4 bytes, movesize 4
+> [  0.000737] (1@carl) Position after write in MPI_File /scratch/lib/libsimgrid.so.3.6.2 : 8
+> [  0.000737] (1@carl) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 4
+> [  0.000838] (2@bob) Write in MPI_File /scratch/lib/libsimgrid.so.3.6.2, 4 bytes written, readsize 4 bytes, movesize 4
+> [  0.000838] (2@bob) Position after write in MPI_File /scratch/lib/libsimgrid.so.3.6.2 : 12
+> [  0.000838] (2@bob) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 8
+> [  0.000838] (0@bob) Write in MPI_File /scratch/lib/libsimgrid.so.3.6.2, 4 bytes written, readsize 4 bytes, movesize 4
+> [  0.000838] (0@bob) Position after write in MPI_File /scratch/lib/libsimgrid.so.3.6.2 : 4
+> [  0.000838] (0@bob) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 0
+> [  0.001040] (3@carl) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 39
+> [  0.001040] (2@bob) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 26
+> [  0.001040] (0@bob) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 0
+> [  0.001040] (1@carl) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 13
+> [  0.001041] (3@carl) Write in MPI_File /scratch/lib/libsimgrid.so.3.6.2, 12 bytes written, readsize 12 bytes, movesize 12
+> [  0.001041] (3@carl) Position after write in MPI_File /scratch/lib/libsimgrid.so.3.6.2 : 51
+> [  0.001041] (1@carl) Write in MPI_File /scratch/lib/libsimgrid.so.3.6.2, 12 bytes written, readsize 12 bytes, movesize 12
+> [  0.001041] (1@carl) Position after write in MPI_File /scratch/lib/libsimgrid.so.3.6.2 : 25
+> [  0.001141] (0@bob) Write in MPI_File /scratch/lib/libsimgrid.so.3.6.2, 12 bytes written, readsize 12 bytes, movesize 12
+> [  0.001141] (0@bob) Position after write in MPI_File /scratch/lib/libsimgrid.so.3.6.2 : 12
+> [  0.001141] (2@bob) Write in MPI_File /scratch/lib/libsimgrid.so.3.6.2, 12 bytes written, readsize 12 bytes, movesize 12
+> [  0.001141] (2@bob) Position after write in MPI_File /scratch/lib/libsimgrid.so.3.6.2 : 38
+> [  0.001799] (0@bob) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 0
+> [  0.001814] (2@bob) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 8
+> [  0.001849] (3@carl) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 12
+> [  0.001849] (1@carl) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 4
+> [  0.002052] (0@bob) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 0
+> [  0.002052] (2@bob) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 26
+> [  0.002052] (3@carl) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 39
+> [  0.002052] (1@carl) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 13
+> [  0.002052] (3@carl) Read in MPI_File /scratch/lib/libsimgrid.so.3.6.2, 12 bytes read, readsize 12 bytes, movesize 12
+> [  0.002052] (3@carl) Position after read in MPI_File /scratch/lib/libsimgrid.so.3.6.2 : 51
+> [  0.002052] (1@carl) Read in MPI_File /scratch/lib/libsimgrid.so.3.6.2, 12 bytes read, readsize 12 bytes, movesize 12
+> [  0.002052] (1@carl) Position after read in MPI_File /scratch/lib/libsimgrid.so.3.6.2 : 25
+> [  0.002153] (2@bob) Read in MPI_File /scratch/lib/libsimgrid.so.3.6.2, 12 bytes read, readsize 12 bytes, movesize 12
+> [  0.002153] (2@bob) Position after read in MPI_File /scratch/lib/libsimgrid.so.3.6.2 : 38
+> [  0.002153] (0@bob) Read in MPI_File /scratch/lib/libsimgrid.so.3.6.2, 12 bytes read, readsize 12 bytes, movesize 12
+> [  0.002153] (0@bob) Position after read in MPI_File /scratch/lib/libsimgrid.so.3.6.2 : 12
\ No newline at end of file
diff --git a/teshsuite/smpi/io-ordered/io-ordered.c b/teshsuite/smpi/io-ordered/io-ordered.c
new file mode 100644
index 0000000000..e5225dfbbd
--- /dev/null
+++ b/teshsuite/smpi/io-ordered/io-ordered.c
@@ -0,0 +1,46 @@
+#include "mpi.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <memory.h>
+
+/* Test reading and writing zero bytes (set status correctly) */
+
+int main( int argc, char *argv[] )
+{
+    int errs = 0;
+    int size, rank, i, *buf, count;
+    MPI_File fh;
+    MPI_Comm comm;
+    MPI_Status status;
+ 
+    MPI_Init( &argc, &argv );
+ 
+    comm = MPI_COMM_WORLD;
+    MPI_File_open( comm, (char*)"/scratch/lib/libsimgrid.so.3.6.2", MPI_MODE_RDWR | MPI_MODE_CREATE | MPI_MODE_DELETE_ON_CLOSE, MPI_INFO_NULL, &fh );
+    MPI_Comm_size( comm, &size );
+    MPI_Comm_rank( comm, &rank );
+    buf = (int *)malloc( 10+size * sizeof(int) );
+    buf[0] = rank;
+ 
+    /* Write to file */
+    MPI_File_write_ordered( fh, buf, 10, MPI_INT, &status );
+    MPI_Get_count( &status, MPI_INT, &count );
+    if (count != 10) {
+        errs++;
+        fprintf( stderr, "Wrong count (%d) on write-ordered\n", count );fflush(stderr);
+    }
+    MPI_Barrier( comm );
+    MPI_File_seek_shared( fh, 0, MPI_SEEK_SET );
+    for (i=0; i<size; i++) buf[i] = -1;
+    MPI_File_read_ordered( fh, buf, 10, MPI_INT, &status );
+
+    MPI_Barrier(comm);
+    MPI_File_seek_shared( fh, 0, MPI_SEEK_SET );
+
+    free( buf );
+    MPI_File_close( &fh );
+ 
+    MPI_Finalize();
+    return errs;
+}
\ No newline at end of file
diff --git a/teshsuite/smpi/io-ordered/io-ordered.tesh b/teshsuite/smpi/io-ordered/io-ordered.tesh
new file mode 100644
index 0000000000..b57d658618
--- /dev/null
+++ b/teshsuite/smpi/io-ordered/io-ordered.tesh
@@ -0,0 +1,40 @@
+# Test for MPI_File_read and MPI_File_write
+! output sort
+$ ${bindir:=.}/../../../smpi_script/bin/smpirun -map -hostfile ../hostfile_io -platform ../../../examples/platforms/storage/remote_io.xml -np 4 --log=xbt_cfg.thres:critical --log=smpi_kernel.thres:warning --log=smpi_mpi.thres:error --log=smpi_io.thres:verbose "--log=root.fmt:[%10.6r]%e(%P@%h)%e%m%n" ${bindir:=.}/io-ordered
+> You requested to use 4 ranks, but there is only 2 processes in your hostfile...
+> [rank 0] -> bob
+> [rank 1] -> carl
+> [rank 2] -> bob
+> [rank 3] -> carl
+> [  0.000282] (0@bob) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 0
+> [  0.000635] (2@bob) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 80
+> [  0.000635] (1@carl) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 40
+> [  0.000635] (3@carl) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 120
+> [  0.000839] (3@carl) Write in MPI_File /scratch/lib/libsimgrid.so.3.6.2, 40 bytes written, readsize 40 bytes, movesize 40
+> [  0.000839] (3@carl) Position after write in MPI_File /scratch/lib/libsimgrid.so.3.6.2 : 160
+> [  0.000839] (1@carl) Write in MPI_File /scratch/lib/libsimgrid.so.3.6.2, 40 bytes written, readsize 40 bytes, movesize 40
+> [  0.000839] (1@carl) Position after write in MPI_File /scratch/lib/libsimgrid.so.3.6.2 : 80
+> [  0.000940] (2@bob) Write in MPI_File /scratch/lib/libsimgrid.so.3.6.2, 40 bytes written, readsize 40 bytes, movesize 40
+> [  0.000940] (2@bob) Position after write in MPI_File /scratch/lib/libsimgrid.so.3.6.2 : 120
+> [  0.000940] (0@bob) Write in MPI_File /scratch/lib/libsimgrid.so.3.6.2, 40 bytes written, readsize 40 bytes, movesize 40
+> [  0.000940] (0@bob) Position after write in MPI_File /scratch/lib/libsimgrid.so.3.6.2 : 40
+> [  0.001091] (0@bob) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 0
+> [  0.001091] (0@bob) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 0
+> [  0.001106] (2@bob) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 0
+> [  0.001141] (3@carl) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 0
+> [  0.001141] (1@carl) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 0
+> [  0.001242] (2@bob) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 80
+> [  0.001242] (1@carl) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 40
+> [  0.001242] (3@carl) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 120
+> [  0.001446] (3@carl) Read in MPI_File /scratch/lib/libsimgrid.so.3.6.2, 40 bytes read, readsize 40 bytes, movesize 40
+> [  0.001446] (3@carl) Position after read in MPI_File /scratch/lib/libsimgrid.so.3.6.2 : 160
+> [  0.001446] (1@carl) Read in MPI_File /scratch/lib/libsimgrid.so.3.6.2, 40 bytes read, readsize 40 bytes, movesize 40
+> [  0.001446] (1@carl) Position after read in MPI_File /scratch/lib/libsimgrid.so.3.6.2 : 80
+> [  0.001548] (2@bob) Read in MPI_File /scratch/lib/libsimgrid.so.3.6.2, 40 bytes read, readsize 40 bytes, movesize 40
+> [  0.001548] (2@bob) Position after read in MPI_File /scratch/lib/libsimgrid.so.3.6.2 : 120
+> [  0.001548] (0@bob) Read in MPI_File /scratch/lib/libsimgrid.so.3.6.2, 40 bytes read, readsize 40 bytes, movesize 40
+> [  0.001548] (0@bob) Position after read in MPI_File /scratch/lib/libsimgrid.so.3.6.2 : 40
+> [  0.001699] (0@bob) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 0
+> [  0.001714] (2@bob) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 0
+> [  0.001749] (3@carl) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 0
+> [  0.001749] (1@carl) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 0
\ No newline at end of file
diff --git a/teshsuite/smpi/io-shared/io-shared.c b/teshsuite/smpi/io-shared/io-shared.c
new file mode 100644
index 0000000000..d83c8baad0
--- /dev/null
+++ b/teshsuite/smpi/io-shared/io-shared.c
@@ -0,0 +1,66 @@
+#include "mpi.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <memory.h>
+
+/* Test reading and writing zero bytes (set status correctly) */
+
+int main( int argc, char *argv[] )
+{
+    int errs = 0;
+    int size, rank, i, *buf, count;
+    MPI_File fh;
+    MPI_Comm comm;
+    MPI_Status status;
+ 
+    MPI_Init( &argc, &argv );
+ 
+    comm = MPI_COMM_WORLD;
+    MPI_File_open( comm, (char*)"/scratch/lib/libsimgrid.so.3.6.2", MPI_MODE_RDWR | MPI_MODE_CREATE | MPI_MODE_DELETE_ON_CLOSE, MPI_INFO_NULL, &fh );
+    MPI_Comm_size( comm, &size );
+    MPI_Comm_rank( comm, &rank );
+    buf = (int *)malloc( 10+size * sizeof(int) );
+    buf[0] = rank;
+ 
+    /* Write nothing (check status) */
+    memset( &status, 0xff, sizeof(MPI_Status) );
+    MPI_File_write( fh, buf, 0, MPI_INT, &status );
+    MPI_Get_count( &status, MPI_INT, &count );
+    if (count != 0) {
+        errs++;
+        fprintf( stderr, "Count not zero (%d) on write\n", count );fflush(stderr);
+    }
+    
+    MPI_Barrier( comm );
+    MPI_File_seek_shared( fh, 0, MPI_SEEK_SET );
+    for (i=0; i<size; i++) buf[i] = -1;
+    MPI_File_read_ordered( fh, buf, 10, MPI_INT, &status );
+
+    MPI_Barrier(comm);
+    MPI_File_seek_shared( fh, 0, MPI_SEEK_SET );
+
+    memset( &status, 0xff, sizeof(MPI_Status) );
+    MPI_File_read_shared( fh, buf, 1, MPI_INT, &status );
+    MPI_Get_count( &status, MPI_INT, &count );
+    if (count != 1) {
+        errs++;
+        fprintf( stderr, "Count not zero (%d) on read shared\n", count );fflush(stderr);
+    }
+    
+    MPI_Barrier(comm);
+    MPI_File_seek_shared( fh, 0, MPI_SEEK_SET );
+
+    memset( &status, 0xff, sizeof(MPI_Status) );
+    MPI_File_write_shared( fh, buf, 1, MPI_INT, &status );
+    if (count != 1) {
+        errs++;
+        fprintf( stderr, "Count not zero (%d) on write\n", count );fflush(stderr);
+    }
+
+    free( buf );
+    MPI_File_close( &fh );
+ 
+    MPI_Finalize();
+    return errs;
+}
\ No newline at end of file
diff --git a/teshsuite/smpi/io-shared/io-shared.tesh b/teshsuite/smpi/io-shared/io-shared.tesh
new file mode 100644
index 0000000000..593588f811
--- /dev/null
+++ b/teshsuite/smpi/io-shared/io-shared.tesh
@@ -0,0 +1,56 @@
+# Test for MPI_File_read and MPI_File_write
+! output sort
+$ ${bindir:=.}/../../../smpi_script/bin/smpirun -map -hostfile ../hostfile_io -platform ../../../examples/platforms/storage/remote_io.xml -np 4 --log=xbt_cfg.thres:critical --log=smpi_kernel.thres:warning --log=smpi_mpi.thres:error --log=smpi_io.thres:verbose "--log=root.fmt:[%10.6r]%e(%P@%h)%e%m%n" ${bindir:=.}/io-shared
+> You requested to use 4 ranks, but there is only 2 processes in your hostfile...
+> [rank 0] -> bob
+> [rank 1] -> carl
+> [rank 2] -> bob
+> [rank 3] -> carl
+> [  0.000584] (0@bob) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 0
+> [  0.000584] (0@bob) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 0
+> [  0.000599] (2@bob) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 0
+> [  0.000634] (3@carl) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 0
+> [  0.000634] (1@carl) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 0
+> [  0.000735] (2@bob) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 80
+> [  0.000735] (1@carl) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 40
+> [  0.000735] (3@carl) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 120
+> [  0.000939] (3@carl) Read in MPI_File /scratch/lib/libsimgrid.so.3.6.2, 40 bytes read, readsize 40 bytes, movesize 40
+> [  0.000939] (3@carl) Position after read in MPI_File /scratch/lib/libsimgrid.so.3.6.2 : 160
+> [  0.000939] (1@carl) Read in MPI_File /scratch/lib/libsimgrid.so.3.6.2, 40 bytes read, readsize 40 bytes, movesize 40
+> [  0.000939] (1@carl) Position after read in MPI_File /scratch/lib/libsimgrid.so.3.6.2 : 80
+> [  0.001041] (2@bob) Read in MPI_File /scratch/lib/libsimgrid.so.3.6.2, 40 bytes read, readsize 40 bytes, movesize 40
+> [  0.001041] (2@bob) Position after read in MPI_File /scratch/lib/libsimgrid.so.3.6.2 : 120
+> [  0.001041] (0@bob) Read in MPI_File /scratch/lib/libsimgrid.so.3.6.2, 40 bytes read, readsize 40 bytes, movesize 40
+> [  0.001041] (0@bob) Position after read in MPI_File /scratch/lib/libsimgrid.so.3.6.2 : 40
+> [  0.001192] (0@bob) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 0
+> [  0.001192] (0@bob) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 0
+> [  0.001292] (0@bob) Read in MPI_File /scratch/lib/libsimgrid.so.3.6.2, 4 bytes read, readsize 4 bytes, movesize 4
+> [  0.001292] (0@bob) Position after read in MPI_File /scratch/lib/libsimgrid.so.3.6.2 : 4
+> [  0.001292] (2@bob) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 0
+> [  0.001292] (3@carl) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 0
+> [  0.001292] (1@carl) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 0
+> [  0.001292] (2@bob) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 0
+> [  0.001393] (2@bob) Read in MPI_File /scratch/lib/libsimgrid.so.3.6.2, 4 bytes read, readsize 4 bytes, movesize 4
+> [  0.001393] (2@bob) Position after read in MPI_File /scratch/lib/libsimgrid.so.3.6.2 : 4
+> [  0.001393] (3@carl) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 4
+> [  0.001393] (3@carl) Read in MPI_File /scratch/lib/libsimgrid.so.3.6.2, 4 bytes read, readsize 4 bytes, movesize 4
+> [  0.001393] (3@carl) Position after read in MPI_File /scratch/lib/libsimgrid.so.3.6.2 : 8
+> [  0.001393] (1@carl) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 8
+> [  0.001393] (1@carl) Read in MPI_File /scratch/lib/libsimgrid.so.3.6.2, 4 bytes read, readsize 4 bytes, movesize 4
+> [  0.001393] (1@carl) Position after read in MPI_File /scratch/lib/libsimgrid.so.3.6.2 : 12
+> [  0.001443] (0@bob) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 0
+> [  0.001443] (0@bob) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 0
+> [  0.001544] (0@bob) Write in MPI_File /scratch/lib/libsimgrid.so.3.6.2, 4 bytes written, readsize 4 bytes, movesize 4
+> [  0.001544] (0@bob) Position after write in MPI_File /scratch/lib/libsimgrid.so.3.6.2 : 4
+> [  0.001544] (2@bob) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 0
+> [  0.001544] (3@carl) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 0
+> [  0.001544] (1@carl) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 0
+> [  0.001544] (2@bob) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 0
+> [  0.001645] (2@bob) Write in MPI_File /scratch/lib/libsimgrid.so.3.6.2, 4 bytes written, readsize 4 bytes, movesize 4
+> [  0.001645] (2@bob) Position after write in MPI_File /scratch/lib/libsimgrid.so.3.6.2 : 4
+> [  0.001645] (3@carl) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 4
+> [  0.001645] (3@carl) Write in MPI_File /scratch/lib/libsimgrid.so.3.6.2, 4 bytes written, readsize 4 bytes, movesize 4
+> [  0.001645] (3@carl) Position after write in MPI_File /scratch/lib/libsimgrid.so.3.6.2 : 8
+> [  0.001645] (1@carl) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 8
+> [  0.001645] (1@carl) Write in MPI_File /scratch/lib/libsimgrid.so.3.6.2, 4 bytes written, readsize 4 bytes, movesize 4
+> [  0.001645] (1@carl) Position after write in MPI_File /scratch/lib/libsimgrid.so.3.6.2 : 12
\ No newline at end of file
diff --git a/teshsuite/smpi/io-simple-at/io-simple-at.c b/teshsuite/smpi/io-simple-at/io-simple-at.c
new file mode 100644
index 0000000000..6a6e161a3f
--- /dev/null
+++ b/teshsuite/smpi/io-simple-at/io-simple-at.c
@@ -0,0 +1,65 @@
+#include "mpi.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <memory.h>
+
+/* Test reading and writing zero bytes (set status correctly) */
+
+int main( int argc, char *argv[] )
+{
+    int errs = 0;
+    int size, rank, i, *buf, count;
+    MPI_File fh;
+    MPI_Comm comm;
+    MPI_Status status;
+ 
+    MPI_Init( &argc, &argv );
+ 
+    comm = MPI_COMM_WORLD;
+    MPI_File_open( comm, (char*)"/scratch/lib/libsimgrid.so.3.6.2", MPI_MODE_RDWR | MPI_MODE_CREATE | MPI_MODE_DELETE_ON_CLOSE, MPI_INFO_NULL, &fh );
+    MPI_Comm_size( comm, &size );
+    MPI_Comm_rank( comm, &rank );
+    buf = (int *)malloc( size * sizeof(int) );
+    buf[0] = rank;
+ 
+    /* Write to file */
+    MPI_File_write_at( fh, sizeof(int)*rank, buf, 1, MPI_INT, &status );
+    MPI_Get_count( &status, MPI_INT, &count );
+    if (count != 1) {
+        errs++;
+        fprintf( stderr, "Wrong count (%d) on write_at\n", count );fflush(stderr);
+    }
+
+    /* Read nothing (check status) */
+    memset( &status, 0xff, sizeof(MPI_Status) );
+    MPI_File_read_at( fh, sizeof(int)*rank, buf, 0, MPI_INT, &status );
+    MPI_Get_count( &status, MPI_INT, &count );
+    if (count != 0) {
+        errs++;
+        fprintf( stderr, "Count not zero (%d) on read\n", count );fflush(stderr);
+    }
+
+    /* Write nothing (check status) */
+    memset( &status, 0xff, sizeof(MPI_Status) );
+    MPI_File_write_at( fh, sizeof(int)*rank, buf, 0, MPI_INT, &status );
+    if (count != 0) {
+        errs++;
+        fprintf( stderr, "Count not zero (%d) on write\n", count );fflush(stderr);
+    }
+
+    MPI_Barrier( comm );
+
+    for (i=0; i<size; i++) buf[i] = -1;
+    MPI_File_read_at( fh, sizeof(int)*rank, buf, 1, MPI_INT, &status );
+    // if (buf[0] != rank) {
+        // errs++;
+        // fprintf( stderr, "%d: buf = %d\n", rank, buf[0] );fflush(stderr);
+    // }
+ 
+    free( buf );
+    MPI_File_close( &fh );
+ 
+    MPI_Finalize();
+    return errs;
+}
\ No newline at end of file
diff --git a/teshsuite/smpi/io-simple-at/io-simple-at.tesh b/teshsuite/smpi/io-simple-at/io-simple-at.tesh
new file mode 100644
index 0000000000..90b665a11c
--- /dev/null
+++ b/teshsuite/smpi/io-simple-at/io-simple-at.tesh
@@ -0,0 +1,32 @@
+# Test for MPI_File_read and MPI_File_write
+! output sort
+$ ${bindir:=.}/../../../smpi_script/bin/smpirun -map -hostfile ../hostfile_io -platform ../../../examples/platforms/storage/remote_io.xml -np 4 --log=xbt_cfg.thres:critical --log=smpi_kernel.thres:warning --log=smpi_mpi.thres:error --log=smpi_io.thres:verbose "--log=root.fmt:[%10.6r]%e(%P@%h)%e%m%n" ${bindir:=.}/io-simple-at
+> You requested to use 4 ranks, but there is only 2 processes in your hostfile...
+> [rank 0] -> bob
+> [rank 1] -> carl
+> [rank 2] -> bob
+> [rank 3] -> carl
+> [  0.000282] (0@bob) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 0
+> [  0.000358] (2@bob) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 8
+> [  0.000383] (0@bob) Write in MPI_File /scratch/lib/libsimgrid.so.3.6.2, 4 bytes written, readsize 4 bytes, movesize 4
+> [  0.000383] (0@bob) Position after write in MPI_File /scratch/lib/libsimgrid.so.3.6.2 : 4
+> [  0.000459] (2@bob) Write in MPI_File /scratch/lib/libsimgrid.so.3.6.2, 4 bytes written, readsize 4 bytes, movesize 4
+> [  0.000459] (2@bob) Position after write in MPI_File /scratch/lib/libsimgrid.so.3.6.2 : 12
+> [  0.000534] (3@carl) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 12
+> [  0.000534] (1@carl) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 4
+> [  0.000534] (3@carl) Write in MPI_File /scratch/lib/libsimgrid.so.3.6.2, 4 bytes written, readsize 4 bytes, movesize 4
+> [  0.000534] (3@carl) Position after write in MPI_File /scratch/lib/libsimgrid.so.3.6.2 : 16
+> [  0.000534] (1@carl) Write in MPI_File /scratch/lib/libsimgrid.so.3.6.2, 4 bytes written, readsize 4 bytes, movesize 4
+> [  0.000534] (1@carl) Position after write in MPI_File /scratch/lib/libsimgrid.so.3.6.2 : 8
+> [  0.000584] (0@bob) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 0
+> [  0.000599] (2@bob) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 8
+> [  0.000634] (3@carl) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 12
+> [  0.000634] (1@carl) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 4
+> [  0.000634] (3@carl) Read in MPI_File /scratch/lib/libsimgrid.so.3.6.2, 4 bytes read, readsize 4 bytes, movesize 4
+> [  0.000634] (3@carl) Position after read in MPI_File /scratch/lib/libsimgrid.so.3.6.2 : 16
+> [  0.000634] (1@carl) Read in MPI_File /scratch/lib/libsimgrid.so.3.6.2, 4 bytes read, readsize 4 bytes, movesize 4
+> [  0.000634] (1@carl) Position after read in MPI_File /scratch/lib/libsimgrid.so.3.6.2 : 8
+> [  0.000685] (0@bob) Read in MPI_File /scratch/lib/libsimgrid.so.3.6.2, 4 bytes read, readsize 4 bytes, movesize 4
+> [  0.000685] (0@bob) Position after read in MPI_File /scratch/lib/libsimgrid.so.3.6.2 : 4
+> [  0.000700] (2@bob) Read in MPI_File /scratch/lib/libsimgrid.so.3.6.2, 4 bytes read, readsize 4 bytes, movesize 4
+> [  0.000700] (2@bob) Position after read in MPI_File /scratch/lib/libsimgrid.so.3.6.2 : 12
\ No newline at end of file
diff --git a/teshsuite/smpi/io-simple/io-simple.c b/teshsuite/smpi/io-simple/io-simple.c
new file mode 100644
index 0000000000..33d8ef069e
--- /dev/null
+++ b/teshsuite/smpi/io-simple/io-simple.c
@@ -0,0 +1,67 @@
+#include "mpi.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <memory.h>
+
+/* Test reading and writing zero bytes (set status correctly) */
+
+int main( int argc, char *argv[] )
+{
+    int errs = 0;
+    int size, rank, i, *buf, count;
+    MPI_File fh;
+    MPI_Comm comm;
+    MPI_Status status;
+ 
+    MPI_Init( &argc, &argv );
+ 
+    comm = MPI_COMM_WORLD;
+    MPI_File_open( comm, (char*)"/scratch/lib/libsimgrid.so.3.6.2", MPI_MODE_RDWR | MPI_MODE_CREATE | MPI_MODE_DELETE_ON_CLOSE, MPI_INFO_NULL, &fh );
+    MPI_Comm_size( comm, &size );
+    MPI_Comm_rank( comm, &rank );
+    buf = (int *)malloc( size * sizeof(int) );
+    buf[0] = rank;
+ 
+    /* Write to file */
+    MPI_File_seek( fh, sizeof(int)*rank, MPI_SEEK_SET ); 
+    MPI_File_write( fh, buf, 1, MPI_INT, &status );
+    MPI_Get_count( &status, MPI_INT, &count );
+    if (count != 1) {
+        errs++;
+        fprintf( stderr, "Wrong count (%d) on write\n", count );fflush(stderr);
+    }
+
+    /* Read nothing (check status) */
+    memset( &status, 0xff, sizeof(MPI_Status) );
+    MPI_File_read( fh, buf, 0, MPI_INT, &status );
+    MPI_Get_count( &status, MPI_INT, &count );
+    if (count != 0) {
+        errs++;
+        fprintf( stderr, "Count not zero (%d) on read\n", count );fflush(stderr);
+    }
+
+    /* Write nothing (check status) */
+    memset( &status, 0xff, sizeof(MPI_Status) );
+    MPI_File_write( fh, buf, 0, MPI_INT, &status );
+    if (count != 0) {
+        errs++;
+        fprintf( stderr, "Count not zero (%d) on write\n", count );fflush(stderr);
+    }
+
+    MPI_Barrier( comm );
+
+    MPI_File_seek( fh, sizeof(int)*rank, MPI_SEEK_SET );
+    for (i=0; i<size; i++) buf[i] = -1;
+    MPI_File_read( fh, buf, 1, MPI_INT, &status );
+    // if (buf[0] != rank) {
+        // errs++;
+        // fprintf( stderr, "%d: buf = %d\n", rank, buf[0] );fflush(stderr);
+    // }
+ 
+    free( buf );
+    MPI_File_close( &fh );
+ 
+    MPI_Finalize();
+    return errs;
+}
\ No newline at end of file
diff --git a/teshsuite/smpi/io-simple/io-simple.tesh b/teshsuite/smpi/io-simple/io-simple.tesh
new file mode 100644
index 0000000000..6621c9c0eb
--- /dev/null
+++ b/teshsuite/smpi/io-simple/io-simple.tesh
@@ -0,0 +1,32 @@
+# Test for MPI_File_read and MPI_File_write
+! output sort
+$ ${bindir:=.}/../../../smpi_script/bin/smpirun -map -hostfile ../hostfile_io -platform ../../../examples/platforms/storage/remote_io.xml -np 4 --log=xbt_cfg.thres:critical --log=smpi_kernel.thres:warning --log=smpi_mpi.thres:error --log=smpi_io.thres:verbose "--log=root.fmt:[%10.6r]%e(%P@%h)%e%m%n" ${bindir:=.}/io-simple
+> You requested to use 4 ranks, but there is only 2 processes in your hostfile...
+> [rank 0] -> bob
+> [rank 1] -> carl
+> [rank 2] -> bob
+> [rank 3] -> carl
+> [  0.000282] (0@bob) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 0
+> [  0.000358] (2@bob) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 8
+> [  0.000383] (0@bob) Write in MPI_File /scratch/lib/libsimgrid.so.3.6.2, 4 bytes written, readsize 4 bytes, movesize 4
+> [  0.000383] (0@bob) Position after write in MPI_File /scratch/lib/libsimgrid.so.3.6.2 : 4
+> [  0.000459] (2@bob) Write in MPI_File /scratch/lib/libsimgrid.so.3.6.2, 4 bytes written, readsize 4 bytes, movesize 4
+> [  0.000459] (2@bob) Position after write in MPI_File /scratch/lib/libsimgrid.so.3.6.2 : 12
+> [  0.000534] (3@carl) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 12
+> [  0.000534] (1@carl) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 4
+> [  0.000534] (3@carl) Write in MPI_File /scratch/lib/libsimgrid.so.3.6.2, 4 bytes written, readsize 4 bytes, movesize 4
+> [  0.000534] (3@carl) Position after write in MPI_File /scratch/lib/libsimgrid.so.3.6.2 : 16
+> [  0.000534] (1@carl) Write in MPI_File /scratch/lib/libsimgrid.so.3.6.2, 4 bytes written, readsize 4 bytes, movesize 4
+> [  0.000534] (1@carl) Position after write in MPI_File /scratch/lib/libsimgrid.so.3.6.2 : 8
+> [  0.000584] (0@bob) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 0
+> [  0.000599] (2@bob) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 8
+> [  0.000634] (3@carl) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 12
+> [  0.000634] (1@carl) Seeking in MPI_File /scratch/lib/libsimgrid.so.3.6.2, setting offset 4
+> [  0.000634] (3@carl) Read in MPI_File /scratch/lib/libsimgrid.so.3.6.2, 4 bytes read, readsize 4 bytes, movesize 4
+> [  0.000634] (3@carl) Position after read in MPI_File /scratch/lib/libsimgrid.so.3.6.2 : 16
+> [  0.000634] (1@carl) Read in MPI_File /scratch/lib/libsimgrid.so.3.6.2, 4 bytes read, readsize 4 bytes, movesize 4
+> [  0.000634] (1@carl) Position after read in MPI_File /scratch/lib/libsimgrid.so.3.6.2 : 8
+> [  0.000685] (0@bob) Read in MPI_File /scratch/lib/libsimgrid.so.3.6.2, 4 bytes read, readsize 4 bytes, movesize 4
+> [  0.000685] (0@bob) Position after read in MPI_File /scratch/lib/libsimgrid.so.3.6.2 : 4
+> [  0.000700] (2@bob) Read in MPI_File /scratch/lib/libsimgrid.so.3.6.2, 4 bytes read, readsize 4 bytes, movesize 4
+> [  0.000700] (2@bob) Position after read in MPI_File /scratch/lib/libsimgrid.so.3.6.2 : 12
\ No newline at end of file