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Narval/en: Difference between revisions
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In practice the Narval racks contain islands of 48 or 56 regular CPU nodes. It is therefore possible to run parallel jobs using up to 3584 cores with a non-blocking network. For larger jobs or ones which are distributed in a fragmented manner across the network, the blocking factor is 4.7:1. The inter-connect remains a high-performance one nonetheless. | In practice the Narval racks contain islands of 48 or 56 regular CPU nodes. It is therefore possible to run parallel jobs using up to 3584 cores with a non-blocking network. For larger jobs or ones which are distributed in a fragmented manner across the network, the blocking factor is 4.7:1. The inter-connect remains a high-performance one nonetheless. | ||
=Node Characteristics= | =Node Characteristics= | ||
{| class="wikitable sortable" | {| class="wikitable sortable" | ||
! nodes !! cores !! available memory !! CPU !! storage !! GPU | ! nodes !! cores !! available memory !! CPU !! storage !! GPU | ||
|- | |- | ||
| 1109 || rowspan="2"|64 || ~ | | 1109 || rowspan="2"|64 || ~256G || rowspan="2"|2 x AMD Rome 7532 @ 2.40 GHz 256M cache L3 || rowspan="2"|1 x 960G SSD || rowspan="2"|- | ||
|- | |- | ||
| 33 || ~ | | 33 || ~2048G | ||
|- | |- | ||
| 158 || 48 || ~ | | 158 || 48 || ~512G || 2 x AMD Milan 7413 @ 2.65 GHz 128M cache L3 || 1 x SSD of 3.84 TB || 4 x NVidia A100 (40 GB memory) | ||
|} | |} | ||
=Particularités liées aux processeurs AMD= | =Particularités liées aux processeurs AMD= | ||