if gcc is installed on your compute node, you can run echo | gcc -v -E - 2>&1 | grep cc1
and look for the -march=xxx parameter /* you might want to compare that with your fronted */ And/or you can run grep family /proc/cpuinfo on your compute node Then man gcc on your front end node >From my gcc, -march=bdver1 for Family 15h, -march=barcelona for family 10h That being said, my best bet is you compile on a compute node ... Cheers, Gilles On Thursday, September 15, 2016, Mahmood Naderan <mahmood...@gmail.com> wrote: > Although the CPUs are nearly the same, but the CPU flags are different. > I noticed that the frontend has fma, f16c, tch, tce, tbm and bmi1 while > the compute nodes don't have them. > > I guess that since the programs were compiled on the frontend (6380), > there are some especial instructions in the optimization phase which aren't > available in compute nodes (6282). > > Maybe this is not really related to OMPI, but anybody know which compiler > flags are related to these special instructions? > > > > > >Ok, you can try this under gdb > >info proc mapping > >info registers > >x /100x $rip > >x /100x $eip > > The process is dead, so some commands are invalid. > > Program terminated with signal 4, Illegal instruction. > #0 0x00000000008da76e in ?? () > (gdb) info proc mapping > No /proc directory: '/proc/5383' > (gdb) info registers > rax 0x0 0 > rbx 0x448f980 71891328 > rcx 0x7fff52810b00 140734577576704 > rdx 0x448f980 71891328 > rsi 0x448f980 71891328 > rdi 0x8 8 > rbp 0x448f980 0x448f980 > rsp 0x7fff52810ae8 0x7fff52810ae8 > r8 0x1 1 > r9 0x9c0 2496 > r10 0x44af480 72021120 > r11 0x44b1b80 72031104 > r12 0x8 8 > r13 0x8 8 > r14 0x9 9 > r15 0x13880 80000 > rip 0x8da76e 0x8da76e > eflags 0x10246 [ PF ZF IF RF ] > cs 0x33 51 > ss 0x2b 43 > ds 0x0 0 > es 0x0 0 > fs 0x0 0 > gs 0x0 0 > (gdb) x /100x $rip > 0x8da76e: Cannot access memory at address 0x8da76e > (gdb) x /100x $eip > Value can't be converted to integer. > (gdb) > > > > Regards, > Mahmood > > >
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