Differences

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--- technical:slurm:caviness:synth_features [2025-11-13 11:20] – created frey
+++ technical:slurm:caviness:synth_features [2025-11-19 13:53] (current) – frey
@@ Line 33: / Line 33: @@
 | ''CACHE''  | kilobytes of cache reported by the CPU                  |
 | ''ISA''    | available ISA extensions (e.g. avx512f or sse4_1)       |
+| ''PCI''    | special PCI devices (e.g. GPUs)                         |
-This will yield an augmented feature list like:
+This will yield augmented feature lists like:
 <code bash>
@@ Line 40: / Line 41: @@
    AvailableFeatures=Gen1,E5-2695,E5-2695v4,128GB,VENDOR::GenuineIntel,MODEL::E5-2695_v4,CACHE::46080KB,ISA::sse,ISA::sse2,ISA::sse4_1,ISA::sse4_2,ISA::avx,ISA::avx2
    ActiveFeatures=Gen1,E5-2695,E5-2695v4,128GB,VENDOR::GenuineIntel,MODEL::E5-2695_v4,CACHE::46080KB,ISA::sse,ISA::sse2,ISA::sse4_1,ISA::sse4_2,ISA::avx,ISA::avx2
+[user@login01.caviness ~]$ scontrol show node r00g00 | grep Features
+   AvailableFeatures=Gen1,E5-2695,E5-2695v4,128GB,PCI::GPU::P100,VENDOR::GenuineIntel,MODEL::E5-2695_v4,CACHE::46080KB,ISA::sse,ISA::sse2,ISA::ssse3,ISA::sse4_1,ISA::sse4_2,ISA::avx,ISA::avx2
+   ActiveFeatures=Gen1,E5-2695,E5-2695v4,128GB,PCI::GPU::P100,VENDOR::GenuineIntel,MODEL::E5-2695_v4,CACHE::46080KB,ISA::sse,ISA::sse2,ISA::ssse3,ISA::sse4_1,ISA::sse4_2,ISA::avx,ISA::avx2
 [user@login01.caviness ~]$ scontrol show node r05n14 | grep Features
@@ Line 50: / Line 55: @@
 <code bash>
 [user@login01.caviness ~]$ sbatch … --constrain='ISA::avx512f&ISA::avx512bw' …
+</code>
+To further qualify the hardware selection, the existing ''Gen2'' feature could still be used, for example:
+<code bash>
+[user@login01.caviness ~]$ sbatch … --constrain='Gen2&ISA::avx512f&ISA::avx512bw' …
 </code>