diff --git a/src/plugins/mpi/pmix/mpi_pmix.c b/src/plugins/mpi/pmix/mpi_pmix.c
index bbb947616c..b284af63f2 100644
--- a/src/plugins/mpi/pmix/mpi_pmix.c
+++ b/src/plugins/mpi/pmix/mpi_pmix.c
@@ -89,6 +89,8 @@ const uint32_t plugin_version = SLURM_VERSION_NUMBER;
void *libpmix_plug = NULL;
+static const char *pmix_libraries[] = { "libpmix.so", "libpmix.so.2", "libpmix.so.1" };
+
static void _libpmix_close(void *lib_plug)
{
xassert(lib_plug);
@@ -99,15 +101,20 @@ static void *_libpmix_open(void)
{
void *lib_plug = NULL;
char *full_path = NULL;
+ size_t sz = 0;
#ifdef PMIXP_V1_LIBPATH
xstrfmtcat(full_path, "%s/", PMIXP_V1_LIBPATH);
#elif defined PMIXP_V2_LIBPATH
xstrfmtcat(full_path, "%s/", PMIXP_V2_LIBPATH);
#endif
- xstrfmtcat(full_path, "libpmix.so");
- lib_plug = dlopen(full_path, RTLD_LAZY | RTLD_GLOBAL);
- xfree(full_path);
+
+ while (!lib_plug && (sz < sizeof(pmix_libraries)/sizeof(pmix_libraries[0]))) {
+ xstrfmtcat(full_path, "%s", pmix_libraries[sz]);
+ lib_plug = dlopen(full_path, RTLD_LAZY | RTLD_GLOBAL);
+ xfree(full_path);
+ ++sz;
+ }
if (lib_plug && (HAVE_PMIX_VER != pmixp_lib_get_version())) {
PMIXP_ERROR("pmi/pmix: incorrect PMIx library version loaded %d was loaded, required %d version",
diff --git a/src/plugins/mpi/pmix/pmixp_dconn_ucx.c b/src/plugins/mpi/pmix/pmixp_dconn_ucx.c
index f6c91adc93..650fb7d5ff 100644
--- a/src/plugins/mpi/pmix/pmixp_dconn_ucx.c
+++ b/src/plugins/mpi/pmix/pmixp_dconn_ucx.c
@@ -140,6 +140,8 @@ static struct io_operations _progress_ops = {
.handle_read = _progress_read
};
+static const char *ucx_libraries[] = { "libucp.so", "libucp.so.0" };
+
static void *_ucx_init(int nodeid, pmixp_p2p_data_t direct_hdr);
static void _ucx_fini(void *_priv);
static int _ucx_connect(void *_priv, void *ep_data, size_t ep_len,
@@ -161,15 +163,20 @@ static int _load_ucx_lib()
setenv("UCX_MEM_MALLOC_RELOC", "no", 1);
setenv("UCX_MEM_EVENTS", "no", 1);
+ size_t sz = 0;
+
#ifdef PMIXP_UCX_LIBPATH
/* If this Slurm build doesn't allow RPATH's
* try to open library by it's full path that
* we have from autoconf
*/
char *full_path = NULL;
- xstrfmtcat(full_path, "%s/libucp.so", PMIXP_UCX_LIBPATH);
- _ucx_lib_handler = dlopen(full_path, RTLD_LAZY | RTLD_GLOBAL);
- xfree(full_path);
+ while (!_ucx_lib_handler && (sz < sizeof(ucx_libraries)/sizeof(ucx_libraries[0]))) {
+ xstrfmtcat(full_path, "%s/%s", PMIXP_UCX_LIBPATH, ucx_libraries[sz]);
+ _ucx_lib_handler = dlopen(full_path, RTLD_LAZY | RTLD_GLOBAL);
+ xfree(full_path);
+ ++sz;
+ }
if (_ucx_lib_handler) {
/* successful, exit now */
return SLURM_SUCCESS;
@@ -178,7 +185,13 @@ static int _load_ucx_lib()
* known by dynamic linker.
*/
#endif
- _ucx_lib_handler = dlopen("libucp.so", RTLD_LAZY | RTLD_GLOBAL);
+ sz = 0;
+ while (!_ucx_lib_handler && (sz < sizeof(ucx_libraries)/sizeof(ucx_libraries[0]))) {
+ xstrfmtcat(full_path, "%s", ucx_libraries[sz]);
+ _ucx_lib_handler = dlopen(full_path, RTLD_LAZY | RTLD_GLOBAL);
+ xfree(full_path);
+ ++sz;
+ }
if (!_ucx_lib_handler) {
char *err = dlerror();
PMIXP_ERROR("Cannot open UCX lib: %s", (err) ? err : "unknown");