From 7028efa4a2124b20dc677b1ce3b7fc895347b774 Mon Sep 17 00:00:00 2001
From: Moe Jette <jette1@llnl.gov>
Date: Fri, 12 May 2006 18:25:26 +0000
Subject: [PATCH] Add descriptive comment, no change in logic.
---
src/srun/allocate.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/src/srun/allocate.c b/src/srun/allocate.c
index 4d352b6f097..ba19b0a5bbc 100644
--- a/src/srun/allocate.c
+++ b/src/srun/allocate.c
@@ -119,11 +119,18 @@ allocate_nodes(void)
info("Warning: %s", slurm_strerror(resp->error_code));
_wait_for_resources(&resp);
}
+ /* For diagnosing a node problem, administrators need to sometimes
+ * run a job on N nodes one of which must be the node believed to
+ * have a problem (e.g. "srun -N4 -w bad_node diagnostic"). The
+ * below logic prevents this from working and necessiates the
+ * admin identify four specific nodes to use for the above test
+ * instead of just the one bad node. Otherwise only the one
+ * bad node is used in the job's allocation. */
if(resp->node_list && j->req_nodes) {
xfree(resp->node_list);
resp->node_list = xstrdup(j->req_nodes);
}
-
+
done:
xsignal_set_mask(&oset);
xsignal(SIGINT, ointf);
--
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