https://github.com/pmodels/mpich/pull/5623
+ additional fix from https://github.com/nwchemgit/nwchem/issues/463#issuecomment-960359049

src/gpu/mpl_gpu_ze.c:163:71: error: use of undeclared identifier 'ZE_IPC_MEMORY_FLAG_TBD'
        zeMemOpenIpcHandle(global_ze_context, dev_handle, ipc_handle, ZE_IPC_MEMORY_FLAG_TBD, ptr);
                                                                      ^

--- src/mpi/romio/mpl/src/gpu/mpl_gpu_ze.c.orig	2021-05-25 17:37:05 UTC
+++ src/mpi/romio/mpl/src/gpu/mpl_gpu_ze.c
@@ -160,7 +160,7 @@ int MPL_gpu_ipc_handle_map(MPL_gpu_ipc_mem_handle_t ip
     int mpl_err = MPL_SUCCESS;
     ze_result_t ret;
     ret =
-        zeMemOpenIpcHandle(global_ze_context, dev_handle, ipc_handle, ZE_IPC_MEMORY_FLAG_TBD, ptr);
+        zeMemOpenIpcHandle(global_ze_context, dev_handle, ipc_handle, 0, ptr);
     if (ret != ZE_RESULT_SUCCESS) {
         mpl_err = MPL_ERR_GPU_INTERNAL;
         goto fn_fail;
--- src/mpl/src/gpu/mpl_gpu_ze.c.orig	2021-05-25 17:37:05 UTC
+++ src/mpl/src/gpu/mpl_gpu_ze.c
@@ -160,7 +160,7 @@ int MPL_gpu_ipc_handle_map(MPL_gpu_ipc_mem_handle_t ip
     int mpl_err = MPL_SUCCESS;
     ze_result_t ret;
     ret =
-        zeMemOpenIpcHandle(global_ze_context, dev_handle, ipc_handle, ZE_IPC_MEMORY_FLAG_TBD, ptr);
+        zeMemOpenIpcHandle(global_ze_context, dev_handle, ipc_handle, 0, ptr);
     if (ret != ZE_RESULT_SUCCESS) {
         mpl_err = MPL_ERR_GPU_INTERNAL;
         goto fn_fail;
@@ -191,6 +191,8 @@ int MPL_gpu_query_pointer_attr(const void *ptr, MPL_po
     ze_device_handle_t device;
     memset(&ptr_attr, 0, sizeof(ze_memory_allocation_properties_t));
     ret = zeMemGetAllocProperties(global_ze_context, ptr, &ptr_attr, &device);
+    attr->type = 0;
+    attr->device = 0;
     ZE_ERR_CHECK(ret);
     attr->device = device;
     switch (ptr_attr.type) {
--- src/pm/hydra2/mpl/src/gpu/mpl_gpu_ze.c.orig	2021-05-25 17:37:05 UTC
+++ src/pm/hydra2/mpl/src/gpu/mpl_gpu_ze.c
@@ -160,7 +160,7 @@ int MPL_gpu_ipc_handle_map(MPL_gpu_ipc_mem_handle_t ip
     int mpl_err = MPL_SUCCESS;
     ze_result_t ret;
     ret =
-        zeMemOpenIpcHandle(global_ze_context, dev_handle, ipc_handle, ZE_IPC_MEMORY_FLAG_TBD, ptr);
+        zeMemOpenIpcHandle(global_ze_context, dev_handle, ipc_handle, 0, ptr);
     if (ret != ZE_RESULT_SUCCESS) {
         mpl_err = MPL_ERR_GPU_INTERNAL;
         goto fn_fail;
--- src/pm/hydra/mpl/src/gpu/mpl_gpu_ze.c.orig	2021-05-25 17:37:05 UTC
+++ src/pm/hydra/mpl/src/gpu/mpl_gpu_ze.c
@@ -160,7 +160,7 @@ int MPL_gpu_ipc_handle_map(MPL_gpu_ipc_mem_handle_t ip
     int mpl_err = MPL_SUCCESS;
     ze_result_t ret;
     ret =
-        zeMemOpenIpcHandle(global_ze_context, dev_handle, ipc_handle, ZE_IPC_MEMORY_FLAG_TBD, ptr);
+        zeMemOpenIpcHandle(global_ze_context, dev_handle, ipc_handle, 0, ptr);
     if (ret != ZE_RESULT_SUCCESS) {
         mpl_err = MPL_ERR_GPU_INTERNAL;
         goto fn_fail;