only run experiment if it has not been already executed

scripts/sbatch_generator.py

@@ -266,7 +266,9 @@ def mpi_run(command, nodes, threads, timeout_minutes, job_name, output_folder):
     error_file = f"{output_folder}/{job_name}.err"
     output_file = f"{output_folder}/{job_name}.out"
     timeout = timeout_minutes * 60
-    return f'mpirun --mca orte_rsh_agent "oarsh" -machinefile $OAR_NODEFILE --npernode {nodes} -cpus-per-proc {threads} --timeout {timeout} {command} > {output_file} 2>{error_file}'
+    command = f'mpirun --mca orte_rsh_agent "oarsh" -machinefile $OAR_NODEFILE --npernode {nodes} -cpus-per-proc {threads} --timeout {timeout} {command} > {output_file} 2>{error_file}'
+
+    return f"[ ! -f {output_file} ] && {command};"
 
 
 def generate_experiment_name(tool_dict):