Re: multiprocessor
On Tuesday 20 June 2006 10:55, Matthew Robinson wrote:
> Francesco Pietra wrote:
> > Forgot to say:
> >
> > $ uname -a
> > Linux deb64 2.6.15-1-amd64-k8-smp #2 date
> > ________________
> >
> > mpqc 2.3.0-1, running on amd64 etch debian, sees only one processor,
> > while there are two.
> >
> > I posed the question also to the mpqc list but, in the meantime, I wonder
> > wether there is anything general to do with debian.
> >
> > Mother bowrd Tyan K8WE S 2895, two 265 dual opteron, all eight slots of
> > ram filled (1 GB each)
> >
> > At computer on:
> > CPU0=Dual Core amd64 opteron 265
> > CPU1=Dual Core amd64 opteron 265
> >
> > All ram detected (also, subsequently, with top command)
> >
> > However, runs with mpqc (that end successfully) report:
> > Using ProcMessageGrp for message passing (number of nodes = 1).
> > Using PthreadThreadGrp for threading (number of threads = 1).
> > Using ProcMemoryGrp for distributed shared memory.
> > Total number of processors = 1
> >
> > As far as I understand, on the general command
> > $ mpqc filename.inp | tee filename.ou
> > all available processor should be detected.
> >
> > What can be done from the debian general point of view of checking
> > processors?
> >
> > Thanks for helping.
> >
> > Cheers
> >
> > francesco pietra
>
> cat /proc/cpuinfo
Thank you (thanks also for another similar message that has gone lost: two
keyboards, too much). Please, see the attached file cpuinfo on the commad
that you suggested. Why three cpu and not two or four?
francesco
>
> This will show each core as a separate CPU
processor : 0
vendor_id : AuthenticAMD
cpu family : 15
model : 33
model name : Dual Core AMD Opteron(tm) Processor 265
stepping : 2
cpu MHz : 1808.364
cache size : 1024 KB
physical id : 0
siblings : 2
core id : 0
cpu cores : 2
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt lm 3dnowext 3dnow pni lahf_lm cmp_legacy
bogomips : 3619.06
TLB size : 1024 4K pages
clflush size : 64
cache_alignment : 64
address sizes : 40 bits physical, 48 bits virtual
power management: ts fid vid ttp
processor : 1
vendor_id : AuthenticAMD
cpu family : 15
model : 33
model name : Dual Core AMD Opteron(tm) Processor 265
stepping : 2
cpu MHz : 1808.364
cache size : 1024 KB
physical id : 0
siblings : 2
core id : 1
cpu cores : 2
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt lm 3dnowext 3dnow pni lahf_lm cmp_legacy
bogomips : 3616.17
TLB size : 1024 4K pages
clflush size : 64
cache_alignment : 64
address sizes : 40 bits physical, 48 bits virtual
power management: ts fid vid ttp
processor : 2
vendor_id : AuthenticAMD
cpu family : 15
model : 33
model name : Dual Core AMD Opteron(tm) Processor 265
stepping : 2
cpu MHz : 1808.364
cache size : 1024 KB
physical id : 1
siblings : 2
core id : 0
cpu cores : 2
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt lm 3dnowext 3dnow pni lahf_lm cmp_legacy
bogomips : 3616.17
TLB size : 1024 4K pages
clflush size : 64
cache_alignment : 64
address sizes : 40 bits physical, 48 bits virtual
power management: ts fid vid ttp
processor : 3
vendor_id : AuthenticAMD
cpu family : 15
model : 33
model name : Dual Core AMD Opteron(tm) Processor 265
stepping : 2
cpu MHz : 1808.364
cache size : 1024 KB
physical id : 1
siblings : 2
core id : 1
cpu cores : 2
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt lm 3dnowext 3dnow pni lahf_lm cmp_legacy
bogomips : 3616.16
TLB size : 1024 4K pages
clflush size : 64
cache_alignment : 64
address sizes : 40 bits physical, 48 bits virtual
power management: ts fid vid ttp
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