topic Re: DUAL CPU's in Operating System - Linux

DUAL CPU's

Nobody's Hero — Wed, 31 Dec 2003 11:11:16 GMT

I installed another 800 PIII processor in my E800 running RH9. At boot up, the firmware sees 2 cpu's. However, I believe I need to do something to my kernel for RH to see both of them. Does anyone know what that might be

Re: DUAL CPU's

Alexander Chuzhoy — Wed, 31 Dec 2003 11:20:11 GMT

use cat /proc/cpuinfo to see if the system sees both of them....

Re: DUAL CPU's

Nobody's Hero — Wed, 31 Dec 2003 11:30:15 GMT

[root@ltchp5 root]# cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 8
model name : Pentium III (Coppermine)
stepping : 6
cpu MHz : 800.068
cache size : 256 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 2
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse
bogomips : 1595.80

****** Looks like it only sees one. I see a kernel parm called E820 proc support under
'processor type and features. Do you think I need to add this. I know I need to change something.

Re: DUAL CPU's

Tom Ward_1 — Wed, 31 Dec 2003 11:41:36 GMT

Robert,

You'll need to install and boot off a SMP (multiprocessor) kernel to use the second processor. Perhaps you'll see it then.

Regards,
Tom

Re: DUAL CPU's

Nobody's Hero — Wed, 31 Dec 2003 11:43:44 GMT

Thanks Tom,

But could you give me some detail. Is there a SMP feature I can pull into my current Kernel, or do I need to download a new kernel?

Re: DUAL CPU's

Nobody's Hero — Wed, 31 Dec 2003 11:54:32 GMT

Ok, I got it. I need to install an SMP kernel. Anyone know where I can get one? I am using 2.4.20-8

Re: DUAL CPU's

Jerome Henry — Wed, 31 Dec 2003 12:11:59 GMT

Try here :
http://updates.redhat.com/9/en/os/i386/kernel-2.4.20-27.9.i386.rpm

J

Re: DUAL CPU's

Tom Ward_1 — Wed, 31 Dec 2003 12:24:36 GMT

Robert,

Actually you most like want to get one for i686
http://updates.redhat.com/9/en/os/i686/

Might as well get the latest one.

Good luck,
Tom

Re: DUAL CPU's

Vitaly Karasik_1 — Thu, 01 Jan 2004 03:26:06 GMT

and of course, you need kernel-smp-2.4...

and not kernel-2.4...

Rgds,
Vitaly

Re: DUAL CPU's

Jerome Henry — Thu, 01 Jan 2004 06:06:18 GMT

Oops !
I would need a 0 for those two mistakes !
Tks Mark & Vitaly ! Here's the correct URL :
http://updates.redhat.com/9/en/os/i686/kernel-smp-2.4.20-27.9.i686.rpm

Of course, 0 here !

Happy new year every one !

J