Hi All, I found the message below on the user mailing list, and I was wondering if people familiar with this issue can elaborate on the questions I have:
1) what kind of run-times are people seeing when running up to 64 cpus? what is the instruction committed/sec ratio? 2) Is alpha linux able to spawn threads and utilize all these virtual cpus? thx, Tom ---------------------------------------------------------------------- From: Ali Saidi <[EMAIL PROTECTED]> Re: MAX CPUs in ALPHA_FS mode 2006-02-15 23:06 To make this work you need two things: a) A Linux kernel with the patch we have on source forge applied to add the BIG_TSUNANMI configuration option. This option must be selected and the kernel recompiled. b) Instead of using the normal ts_osfpal you need to use tsb_osfpal. This pal code has been modified to support 64 processors. The spinwait problem still exists, and so you have n processors all spinning in a small loop waiting to be activated. Some kind of arm/ quiesce instruction would really help, but none of us have gotten around to implementing it yet. Ali A modified kernel that has a config option for BIG_TSUNAMI. A patch for 2.6.8.1 is available at: On Feb 16, 2006, at 12:03 AM, Steve Reinhardt wrote: ------------------------------------------------------- All the advantages of Linux Managed Hosting--Without the Cost and Risk! Fully trained technicians. The highest number of Red Hat certifications in the hosting industry. Fanatical Support. Click to learn more http://sel.as-us.falkag.net/sel?cmd=lnk&kid=107521&bid=248729&dat=121642 _______________________________________________ m5sim-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/m5sim-users
