HPC-IO500-2019-07-08.md

@@ -31,6 +31,18 @@ RHEL 7.6, kernel-lt elrepo 4.4.135-1.el7.elrepo.x86_64, Mellanox OFED 4.3-3.0.2.
   * On 10 of the 16 SSD OSD nodes
   * Each node has 1x NVMe (Optane 900p 480GB) partitioned into 4, each becomes an OSD (so 40 NVMe OSDs in total)
 
+### Client nodes:
+
+We use 2, 4, 10 and 32 nodes from our gpgpu cluster. Each node has the following specs:
+
+spartan-gpgpu:
+* 2x12-cores Xeon v4 2.2GHz
+* 128GB of RAM
+* 1x100Gbe Mellanox
+* 4x Tesla P100s (not actually used in IO500 benchmarks)
+
+Nodes are spread between as many racks (one switch per rack) as possible, up to 6 racks. 
+
 ## Compiling IO500
 
 We run IO500 via Spartan Slurm, and compile it through Spartan modules.