Hi all, Attached patch for Rankfile RMAPS component, If there are no objections I will submit it next week.
Notes: 1. if rankfile is present the priority of rankfile component of RMAPS gets high value. 2. all unspecified by rankfile ranks are assigned using -byslot or -bynode policy. It's highly recommended to assign all ranks in rankfile if this component is used. 3. usage: mpirun -mca rmaps_rankfile_path rankfile ./app 4. you can use -mca mpi_paffinity_debug 1 to check CPU binding. 5. example: #cat hosfile host1 host2 host3 host4 #cat rankfile rank 1=host1 slot=1:0,1 rank 0=host2 slot=0:* rank 2=host4 slot=1-2 rank 3=host3 slot=0:1,1:0-2 # mpirun -np 2 -hosfile hostfile -mca rmaps_rankfile_path rankfile ./app Explanation: rank 1 will be bounded to host1, socket1 core0 and socket1 core1 rank 0 will be bounded to host2, socket0, all cores rank 2 will be bounded to host4, CPU #1 and CPU #2 rank 3 will be bounded to host3, socket0 core1, socket1 core0, socket1 core1, socket1 core2. Important!!! * There is a user's responsibility to provide the correct number of CPU, Socket or Core to be bind to. * Also it's user's responsibility to provide correct hostname. * There are machines with not sequential socket numbering. * use cat /proc/cpuinfo to check CPU, socket and core numbering on your machine. * Example: processor : 3 /* CPU number */ vendor_id : GenuineIntel cpu family : 6 model : 15 model name : Intel(R) Xeon(R) CPU 5110 @ 1.60GHz stepping : 6 cpu MHz : 1595.957 cache size : 4096 KB physical id : 3 /* Socket id */ siblings : 2 core id : 1 /* Core id */ cpu cores : 2 fpu : yes fpu_exception : yes cpuid level : 10 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm constant_tsc pni monitor ds_cpl vmx tm2 cx16 xtpr dca lahf_lm bogomips : 3192.10 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: Best Regards, Lenny.
rankfile.tgz
Description: rankfile.tgz
rankfile.patch
Description: rankfile.patch
