One of a very small number of the submake processes is getting forced into serial mode inside one of Julia's dependencies (I think it's something inside of openblas). The rest is still happening in parallel, so it safe to just ignore that warning.
On Thu Jan 01 2015 at 5:13:47 AM Ismael VC <[email protected]> wrote: > > <https://lh5.googleusercontent.com/-XeB8w5M2pMU/VKUdrsH9PlI/AAAAAAAAAIU/Ue2pct7SfN4/s1600/htop.png> > I think the build process is still using the 4 cores though, I don't > understand this, should I just ignore those warnings? > > > > > El jueves, 1 de enero de 2015 04:03:06 UTC-6, Ismael VC escribió: > >> I'm building julia with this hardware: >> > >> >> [ismaelvc@toybox ~]$ cat /proc/cpuinfo >> processor : 0 >> vendor_id : GenuineIntel >> cpu family : 6 >> model : 28 >> model name : Intel(R) Atom(TM) CPU N570 @ 1.66GHz >> stepping : 10 >> microcode : 0x107 >> cpu MHz : 1667.000 >> cache size : 512 KB >> physical id : 0 >> siblings : 4 >> core id : 0 >> cpu cores : 2 >> apicid : 0 >> initial apicid : 0 >> fdiv_bug : no >> f00f_bug : no >> coma_bug : no >> 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 pbe nx lm >> constant_tsc arch_perfmon pebs bts aperfmperf pni dtes64 monitor ds_cpl vmx >> est tm2 ssse3 cx16 xtpr pdcm movbe lahf_lm dtherm tpr_shadow vnmi >> flexpriority >> bogomips : 3334.76 >> clflush size : 64 >> cache_alignment : 64 >> address sizes : 36 bits physical, 48 bits virtual >> power management: >> >> processor : 1 >> vendor_id : GenuineIntel >> cpu family : 6 >> model : 28 >> model name : Intel(R) Atom(TM) CPU N570 @ 1.66GHz >> stepping : 10 >> microcode : 0x107 >> cpu MHz : 1667.000 >> cache size : 512 KB >> physical id : 0 >> siblings : 4 >> core id : 1 >> cpu cores : 2 >> apicid : 2 >> initial apicid : 2 >> fdiv_bug : no >> f00f_bug : no >> coma_bug : no >> 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 pbe nx lm >> constant_tsc arch_perfmon pebs bts aperfmperf pni dtes64 monitor ds_cpl vmx >> est tm2 ssse3 cx16 xtpr pdcm movbe lahf_lm dtherm tpr_shadow vnmi >> flexpriority >> bogomips : 3334.76 >> clflush size : 64 >> cache_alignment : 64 >> address sizes : 36 bits physical, 48 bits virtual >> power management: >> >> processor : 2 >> vendor_id : GenuineIntel >> cpu family : 6 >> model : 28 >> model name : Intel(R) Atom(TM) CPU N570 @ 1.66GHz >> stepping : 10 >> microcode : 0x107 >> cpu MHz : 1667.000 >> cache size : 512 KB >> physical id : 0 >> siblings : 4 >> core id : 0 >> cpu cores : 2 >> apicid : 1 >> initial apicid : 1 >> fdiv_bug : no >> f00f_bug : no >> coma_bug : no >> 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 pbe nx lm >> constant_tsc arch_perfmon pebs bts aperfmperf pni dtes64 monitor ds_cpl vmx >> est tm2 ssse3 cx16 xtpr pdcm movbe lahf_lm dtherm tpr_shadow vnmi >> flexpriority >> bogomips : 3334.76 >> clflush size : 64 >> cache_alignment : 64 >> address sizes : 36 bits physical, 48 bits virtual >> power management: >> >> processor : 3 >> vendor_id : GenuineIntel >> cpu family : 6 >> model : 28 >> model name : Intel(R) Atom(TM) CPU N570 @ 1.66GHz >> stepping : 10 >> microcode : 0x107 >> cpu MHz : 1667.000 >> cache size : 512 KB >> physical id : 0 >> siblings : 4 >> core id : 1 >> cpu cores : 2 >> apicid : 3 >> initial apicid : 3 >> fdiv_bug : no >> f00f_bug : no >> coma_bug : no >> 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 pbe nx lm >> constant_tsc arch_perfmon pebs bts aperfmperf pni dtes64 monitor ds_cpl vmx >> est tm2 ssse3 cx16 xtpr pdcm movbe lahf_lm dtherm tpr_shadow vnmi >> flexpriority >> bogomips : 3334.76 >> clflush size : 64 >> cache_alignment : 64 >> address sizes : 36 bits physical, 48 bits virtual >> power management: >> >> And I'm getting the last two warnings documented here: >> https://www.gnu.org/software/make/manual/html_node/Error-Messages.html >> >> warning: -jN forced in submake: disabling jobserver mode. >> warning: jobserver unavailable: using -j1. Add `+' to parent make rule. >> >> When I run `make -j 4`, against latest master. >> >> Previously to this I just set the cpu governor to `performance`. I'm lost >> about where should I put that `+`. >> >> >> Cheers >> Ismael VC >> >> >>
