Can't use 256 nodes for symmetric computing David Apostal https://conferences.xsede.org/c/message_boards/find_message?p_l_id=&messageId=1131133 2016-01-25T16:29:53Z 2016-01-25T16:28:09Z

I am having a problem submitting symmetric computing (CPU and MIC) jobs to Stampede&#039;s normal-mic queue. The normal-mic queue currently allows a job to use a maximum of 256 nodes. <br /><br />When my job script requests 256 CPU-MIC nodes, my job fails. The output includes messages that the argument list is too long. My job script requests 16 CPU MPI tasks and 15 MIC MPI tasks per node.<br /><br />I changed the application so that the CPU and MIC versions don&#039;t use command line arguments. However, the same error messages appear. What does &#034;argument list is too long&#034; mean when the application does not have any command line arguments? How can I get past this error and use all 256 CPU-MIC nodes? <br /><br />The program runs correctly when requesting from 1 to 128 CPU-MIC nodes. Also, the program runs correctly when requesting from 1 to 128 CPU-MIC-MIC nodes on the normal-2mic queue (which allows a job to use a maximum of 128 nodes). <br /><br />I&#039;ve attached my job script and the output file with the error messages for reference. <br /><br />Thank you.

David Apostal 2016-01-25T16:28:09Z