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2.4.9 vs 2.4.18 for HPC

Linux-ia64 Egan Ford 4 participants 4 messages Aug 6, 2002

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Egan Ford

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#0 lore raw

With respect to Itanium2 what advantages does 2.4.18 have over 2.4.9 in an HPC environment?

My concern is that RH7.2 does not have a 2.4.18/19 kernel and probably will not. For support reasons, running 2.4.9-34 from RH may be required. I am curious about the possible performance and stability issues with 2.4.9 on Itanium2.

I am trying to build a case for software development on 2.4.18/19 kernel.org kernels.

Thanks.

#1 lore raw

To name a few...

- HP zx1 chipset support
- McKinley Perfmon support
- McKinley optimized assembly for copy_user, memcpy, copy_page

Alex

Quoted 9 lines · Egan Ford

With respect to Itanium2 what advantages does 2.4.18 have over 2.4.9 in an HPC environment?

My concern is that RH7.2 does not have a 2.4.18/19 kernel and probably will not. For support reasons, running 2.4.9-34 from RH may be required. I am curious about the possible performance and stability issues with 2.4.9 on Itanium2.

Quoted 5 lines

I am trying to build a case for software development on 2.4.18/19 kernel.org kernels.

Thanks.

--
Alex Williamson Linux Development Lab
[email protected] Hewlett Packard
970-898-9173 Fort Collins, CO

#2 lore raw
In reply to Egan Ford
Quoted 11 lines · Egan Ford

With respect to Itanium2 what advantages does 2.4.18 have over 2.4.9 in an HPC environment?

My concern is that RH7.2 does not have a 2.4.18/19 kernel and probably will not. For support reasons, running 2.4.9-34 from RH may be required. I am curious about the possible performance and stability issues with 2.4.9 on Itanium2.

I am trying to build a case for software development on 2.4.18/19 kernel.org kernels.

I don't think RH 7.2 2.4.9 kernels will run on Itanium2. You'll need atleast 2.4.18 + the latest patchset from David.

Regards,

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#3 lore raw
In reply to Egan Ford

There is a big difference from .17 to .18 we and others have seen about 2.5 times memory bandwidth speed up(on a streams benchmark).

         --Mike
Quoted 11 lines · you

With respect to Itanium2 what advantages does 2.4.18 have over 2.4.9 in an HPC environment?

My concern is that RH7.2 does not have a 2.4.18/19 kernel and probably will not. For support reasons, running 2.4.9-34 from RH may be required. I am curious about the possible performance and stability issues with 2.4.9 on Itanium2.

I am trying to build a case for software development on 2.4.18/19 kernel.org kernels.

Quoted 7 lines

Thanks.

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