[csw-maintainers] make -j60 package, parallel build possible? build8s 96% idle while building ...

[Dagobert Michelsen]

Hi Peter,

Am 15.05.2009 um 10:21 schrieb Peter FELECAN:

> Dagobert Michelsen <dam at opencsw.org> writes:
>
>> Hi Rupert,
>>
>> Am 15.05.2009 um 07:13 schrieb rupert THURNER:
>>> as "top" said "96% idle" on build8s, i thought i'd try:
>>>  make -j60 package
>>>
>>> but .. it gives:
>>>  gmake[1]: warning: jobserver unavailable: using -j1.  Add `+' to
>>> parent make rule.
>>>
>>> is there a possibility to trigger parallel compiles?
>>
>> If you want to do it with GAR please use
>>  PARALLELMFLAGS="-l -j 30" gmake package
>> This way the flags are properly propagated to subinvocations.
>
> -j 30 ? How many CPUs do you have in the machine? Reading of the GNU
> make manual is recommended.

> build8s% psrinfo
> 0       on-line   since 04/06/2009 16:33:22
> 1       on-line   since 04/06/2009 16:33:26
> 2       on-line   since 04/06/2009 16:33:26
> 3       on-line   since 04/06/2009 16:33:26
> 4       on-line   since 04/06/2009 16:33:26
> 5       on-line   since 04/06/2009 16:33:26
> 6       on-line   since 04/06/2009 16:33:26
> 7       on-line   since 04/06/2009 16:33:26
> 8       on-line   since 04/06/2009 16:33:26
> 9       on-line   since 04/06/2009 16:33:26
> 10      on-line   since 04/06/2009 16:33:26
> 11      on-line   since 04/06/2009 16:33:26
> 12      on-line   since 04/06/2009 16:33:26
> 13      on-line   since 04/06/2009 16:33:26
> 14      on-line   since 04/06/2009 16:33:26
> 15      on-line   since 04/06/2009 16:33:26
> 16      on-line   since 04/06/2009 16:33:26
> 17      on-line   since 04/06/2009 16:33:26
> 18      on-line   since 04/06/2009 16:33:26
> 19      on-line   since 04/06/2009 16:33:26
> 20      on-line   since 04/06/2009 16:33:26
> 21      on-line   since 04/06/2009 16:33:26
> 22      on-line   since 04/06/2009 16:33:26
> 23      on-line   since 04/06/2009 16:33:26
> 24      on-line   since 04/06/2009 16:33:26
> 25      on-line   since 04/06/2009 16:33:26
> 26      on-line   since 04/06/2009 16:33:26
> 27      on-line   since 04/06/2009 16:33:26
> 28      on-line   since 04/06/2009 16:33:26
> 29      on-line   since 04/06/2009 16:33:26
> 30      on-line   since 04/06/2009 16:33:26
> 31      on-line   since 04/06/2009 16:33:26

I guess it is a good idea to save 2 CPUs for other users ;-)
(It is a T5220 with a 4 Core T2 w/8 strands each)

AND: DO NOT DO THIS UNDER ANY CIRCUMSTANCE ON build8x OR ANY OTHER
X86 MACHINE FROM THE FARM OR IT WILL CATCH FIRE!!


Best regards

   -- Dago