{"id":1392,"date":"2015-04-16T13:53:47","date_gmt":"2015-04-16T18:53:47","guid":{"rendered":"http:\/\/jungwon.kim\/blog\/?p=1392"},"modified":"2015-04-16T13:53:47","modified_gmt":"2015-04-16T18:53:47","slug":"gpu-cpu-affinity","status":"publish","type":"post","link":"https:\/\/blog.jungwon.kim\/?p=1392","title":{"rendered":"gpu cpu affinity"},"content":{"rendered":"
\n
http:\/\/stackoverflow.com\/questions\/16056800\/multi-gpu-programming-using-cuda-on-a-numa-machine<\/a>\n\n#!\/bin\/bash<\/span>\n#this script will output a listing of each GPU and it's CPU core affinity mask<\/span>\nfile<\/span>=<\/span>\"\/proc\/driver\/nvidia\/gpus\/0\/information\"<\/span>\nif<\/span> [<\/span> !<\/span> -<\/span>e $file <\/span>];<\/span> then\n  echo <\/span>\"Unable to locate any GPUs!\"<\/span>\nelse<\/span>\n  gpu_num<\/span>=<\/span>0<\/span>\n  file<\/span>=<\/span>\"\/proc\/driver\/nvidia\/gpus\/$gpu_num\/information\"<\/span>\n  if<\/span> [<\/span> \"-v\"<\/span> ==<\/span> \"$1\"<\/span> ];<\/span> then echo <\/span>\"GPU:  CPU CORE AFFINITY MASK: PCI:\"<\/span>;<\/span> fi\n  <\/span>while<\/span> [<\/span> -<\/span>e $file <\/span>]<\/span>\n  do<\/span>\n    line<\/span>=`<\/span>grep <\/span>\"Bus Location\"<\/span> $file <\/span>|<\/span> {<\/span> read line<\/span>;<\/span> echo $line<\/span>;<\/span> }`<\/span>\n    pcibdf<\/span>=<\/span>$<\/span>{<\/span>line<\/span>:<\/span>14<\/span>}<\/span>\n    pcibd<\/span>=<\/span>$<\/span>{<\/span>line<\/span>:<\/span>14<\/span>:<\/span>7<\/span>}<\/span>\n    file2<\/span>=<\/span>\"\/sys\/class\/pci_bus\/$pcibd\/cpuaffinity\"<\/span>\n    read line2 <\/span><<\/span> $file2\n    <\/span>if<\/span> [<\/span> \"-v\"<\/span> ==<\/span> \"$1\"<\/span> ];<\/span> then\n      echo <\/span>\" $gpu_num     $line2                  $pcibdf\"<\/span>\n    else<\/span>\n      echo <\/span>\" $gpu_num     $line2 \"<\/span>\n    fi\n    gpu_num<\/span>=`<\/span>expr $gpu_num <\/span>+<\/span> 1<\/span>`<\/span>\n    file<\/span>=<\/span>\"\/proc\/driver\/nvidia\/gpus\/$gpu_num\/information\"<\/span>\n  done\nfi<\/span><\/code><\/pre>\n<\/div>\n
 <\/p>\n","protected":false},"excerpt":{"rendered":"
http:\/\/stackoverflow.com\/questions\/16056800\/multi-gpu-programming-using-cuda-on-a-numa-machine #!\/bin\/bash #this script will output a listing of each GPU and it’s CPU core affinity mask file=”\/proc\/driver\/nvidia\/gpus\/0\/information” if [ ! -e $file ]; then echo “Unable to locate any GPUs!” else gpu_num=0 file=”\/proc\/driver\/nvidia\/gpus\/$gpu_num\/information” if [ “-v” == “$1” ];<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-1392","post","type-post","status-publish","format-standard","hentry","category-cs"],"_links":{"self":[{"href":"https:\/\/blog.jungwon.kim\/index.php?rest_route=\/wp\/v2\/posts\/1392","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.jungwon.kim\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.jungwon.kim\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.jungwon.kim\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.jungwon.kim\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1392"}],"version-history":[{"count":0,"href":"https:\/\/blog.jungwon.kim\/index.php?rest_route=\/wp\/v2\/posts\/1392\/revisions"}],"wp:attachment":[{"href":"https:\/\/blog.jungwon.kim\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1392"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.jungwon.kim\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1392"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.jungwon.kim\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1392"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}