- support for MPI_IN_PLACE during gather ops

- fix ABI check and message

This commit was SVN r23840.

ompi/mca/coll/fca/coll_fca_component.c

@@ -141,8 +141,8 @@ int mca_coll_fca_get_fca_lib(struct ompi_communicator_t *comm)
     GET_FCA_SYM(get_version_string);
     fca_ver = FCA_API_CLEAR_MICRO(mca_coll_fca_component.fca_ops.get_version());
 
-    if (fca_ver < FCA_API_VER(FCA_API_ABI_MAJOR,FCA_API_ABI_MINOR)) {
-        FCA_ERROR("Unsupported FCA version: %s Please upgrade FCA to at least v%d.%d", 
+    if (fca_ver != FCA_API_VER(FCA_API_ABI_MAJOR,FCA_API_ABI_MINOR)) {
+        FCA_ERROR("Unsupported FCA version: %s, please update FCA to v%d.%d", 
                   mca_coll_fca_component.fca_ops.get_version_string(),
                   FCA_API_ABI_MAJOR,
                   FCA_API_ABI_MINOR);
@@ -206,6 +206,8 @@ static void mca_coll_fca_close_fca_lib(void)
     mca_coll_fca_component.fca_lib_handle = NULL;
 }
 
+
+
 static int fca_register(void)
 {
     FCA_VERBOSE(2, "==>");

ompi/mca/coll/fca/coll_fca_ops.c

@@ -273,6 +273,14 @@ int mca_coll_fca_allgather(void *sbuf, int scount, struct ompi_datatype_t *sdtyp
 
     spec.sbuf = sbuf;
     spec.rbuf = rbuf;
+    if (MPI_IN_PLACE == spec.sbuf) {
+        FCA_VERBOSE(10, "Using MPI_IN_PLACE for sbuf");
+        spec.sbuf = spec.rbuf;
+    } else if (MPI_IN_PLACE == spec.rbuf) {
+        FCA_VERBOSE(10, "Using MPI_IN_PLACE for rbuf");
+        spec.rbuf = spec.sbuf;
+    }
+
     spec.size = mca_coll_fca_get_buf_size(sdtype, scount, scount);
 
     if (spec.size < 0 || spec.size > fca_module->fca_comm_caps.max_payload ||