From f1ff9b46c6d663e180840b048ba7e2dd65616d43 Mon Sep 17 00:00:00 2001
From: Arnstein Ressem <aressem@gmail.com>
Date: Fri, 20 Aug 2021 10:33:56 +0200
Subject: Revert "Fail Vespa startup if no numactl ."

---
 .../src/main/sh/vespa-start-container-daemon.sh    | 23 ++++++++++++++++++++--
 1 file changed, 21 insertions(+), 2 deletions(-)

(limited to 'container-disc')

diff --git a/container-disc/src/main/sh/vespa-start-container-daemon.sh b/container-disc/src/main/sh/vespa-start-container-daemon.sh
index a0cbd9d9186..223124c29d6 100755
--- a/container-disc/src/main/sh/vespa-start-container-daemon.sh
+++ b/container-disc/src/main/sh/vespa-start-container-daemon.sh
@@ -110,8 +110,27 @@ configure_cpu() {
 }
 
 configure_numactl() {
-    numactlcmd=$(get_numa_ctl_cmd)
-    log_message debug "starting ${VESPA_SERVICE_NAME} for ${VESPA_CONFIG_ID} with numactl command : $numactlcmd"
+    log_message debug "starting ${VESPA_SERVICE_NAME} for ${VESPA_CONFIG_ID}"
+    if numactl --interleave all true &> /dev/null; then
+        # We are allowed to use numactl
+        numnodes=$(numactl --hardware |
+                   grep available |
+                   awk '$3 == "nodes" { print $2 }')
+        if [ "$VESPA_AFFINITY_CPU_SOCKET" ] &&
+           [ "$numnodes" -gt 1 ]
+        then
+            node=$(($VESPA_AFFINITY_CPU_SOCKET % $numnodes))
+            log_message debug "with affinity to $VESPA_AFFINITY_CPU_SOCKET out of $numnodes cpu sockets"
+            numactlcmd="numactl --cpunodebind=$node --membind=$node"
+        else
+            log_message debug "with memory interleaving on all nodes"
+            numactlcmd="numactl --interleave all"
+        fi
+    else
+            log_message debug "without numactl (no permission or not available)"
+            numactlcmd=""
+    fi
+    log_message debug "numactlcmd: $numactlcmd"
 }
 
 configure_gcopts() {
-- 
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