Update DVM launch command to use 'srun' with PMIx v4 for improved compatibility

Author: markcoletti

ipsframework/services.py

@@ -2659,8 +2659,8 @@ def setup(self, worker: Worker):
 
         self.logger.info(f'Launching DVM')
         self.worker.dvm_uri_file = f'/tmp/dvm.uri.{os.getpid()}'
-        command = ['srun', '--mpi=pmix', '-N', os.environ['SLURM_NNODES'],
-                   '--ntasks-per-node=1', 'prte', '--no-daemonize',
+        command = ['srun', '--mpi=pmix_v4', '-N', os.environ['SLURM_NNODES'],
+                   '--ntasks-per-node=1', 'prte', #'--no-daemonize',
                    '--report-uri', self.worker.dvm_uri_file]
 
         mapping_policy = 'core'  # by default bind to cores