From 839f2add8050a6f5b0b6bcc15e8c6cc9e1edc478 Mon Sep 17 00:00:00 2001
From: Philippe Virouleau <philippe.virouleau@inria.fr>
Date: Wed, 8 Nov 2023 14:48:14 +0100
Subject: [PATCH] oar-properties: fix gpu_idx computation
---
lib/refrepo/gen/oar-properties.rb | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/lib/refrepo/gen/oar-properties.rb b/lib/refrepo/gen/oar-properties.rb
index 86008a95360..f8ebc1f5c22 100644
--- a/lib/refrepo/gen/oar-properties.rb
+++ b/lib/refrepo/gen/oar-properties.rb
@@ -1329,7 +1329,10 @@ def extract_clusters_description(clusters, site_name, options, data_hierarchy, s
raise "Could not find a GPU on CPU #{cpu_num} for core #{row[:cpuset]}"
end
else
- gpu_idx = core_num / (cpu_core_count / numa_gpus.length)
+ # The parenthesis order is important: we want to keep the
+ # integer division to generate an integer index, so we want to
+ # do the multiplication first.
+ gpu_idx = (core_num * numa_gpus.length) / cpu_core_count
selected_gpu = numa_gpus[gpu_idx]
end
# id of the selected GPU in the node
--
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