https://community.intel.com/t5/Software-Tuning-Performance/Does-mlc-support-memory-only-NUMA-configuration/m-p/1420054#M8114 <P>mlc fails to run on a server with CXL memory configured as NUMA node 1 memory (there is no CPU to the NUMA node)</P> <PRE class="c-mrkdwn__pre" data-stringify-type="pre"># numactl -H available: 2 nodes (0-1) node 0 cpus: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 node 0 size: 257614 MB node 0 free: 255931 MB node 1 cpus: node 1 size: 128906 MB node 1 free: 29 MB node distances: node 0 1 0: 10 50 1: 255 10</PRE> <PRE class="c-mrkdwn__pre" data-stringify-type="pre"># mlc/mlc Intel(R) Memory Latency Checker - v3.9 Measuring idle latencies (in ns)... Numa node Numa node 0 1 0 alloc_mem_onnode(): unable to mbind: : Invalid argument Buffer allocation failed! # numactl -N0 mlc/mlc Intel(R) Memory Latency Checker - v3.9 Measuring idle latencies (in ns)... Numa node Numa node 0 1 0 alloc_mem_onnode(): unable to mbind: : Invalid argument Buffer allocation failed!</PRE> <P>&nbsp;Is there a configuration or workaround for mlc to support this setup?</P> Thu, 06 Oct 2022 17:20:01 GMT frankkou 2022-10-06T17:20:01Z https://community.intel.com/t5/Software-Tuning-Performance/Does-mlc-support-memory-only-NUMA-configuration/m-p/1420054#M8114 <P>mlc fails to run on a server with CXL memory configured as NUMA node 1 memory (there is no CPU to the NUMA node)</P> <PRE class="c-mrkdwn__pre" data-stringify-type="pre"># numactl -H available: 2 nodes (0-1) node 0 cpus: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 node 0 size: 257614 MB node 0 free: 255931 MB node 1 cpus: node 1 size: 128906 MB node 1 free: 29 MB node distances: node 0 1 0: 10 50 1: 255 10</PRE> <PRE class="c-mrkdwn__pre" data-stringify-type="pre"># mlc/mlc Intel(R) Memory Latency Checker - v3.9 Measuring idle latencies (in ns)... Numa node Numa node 0 1 0 alloc_mem_onnode(): unable to mbind: : Invalid argument Buffer allocation failed! # numactl -N0 mlc/mlc Intel(R) Memory Latency Checker - v3.9 Measuring idle latencies (in ns)... Numa node Numa node 0 1 0 alloc_mem_onnode(): unable to mbind: : Invalid argument Buffer allocation failed!</PRE> <P>&nbsp;Is there a configuration or workaround for mlc to support this setup?</P> Thu, 06 Oct 2022 17:20:01 GMT https://community.intel.com/t5/Software-Tuning-Performance/Does-mlc-support-memory-only-NUMA-configuration/m-p/1420054#M8114 frankkou 2022-10-06T17:20:01Z