Re: Meaning of warning in output log file

From: Victor Kwan (vkwan8_at_uwo.ca)
Date: Tue Apr 17 2018 - 14:10:33 CDT

http://www.ks.uiuc.edu/Research/namd/wiki/index.cgi?NamdWarnings

On 03/28/2018 03:57 AM, Denish Poudyal wrote:
> Output log file of the simulation I've doing writes this:
>
> "Charm++: standalone mode (not using charmrun)
> Charm++> Running in Multicore mode:  4 threads
> Charm++> Using recursive bisection (scheme 3) for topology aware
> partitions
> Converse/Charm++ Commit ID:
> v6.7.1-0-gbdf6a1b-namd-charm-6.7.1-build-2016-Nov-07-136676
> Warning> Randomization of stack pointer is turned on in kernel, thread
> migration may not work! Run 'echo 0 >
> /proc/sys/kernel/randomize_va_space' as root to disable it, or try run
> with '+isomalloc_sync'.
> CharmLB> Load balancer assumes all CPUs are same.
> Charm++> Running on 1 unique compute nodes (4-way SMP).
> Charm++> cpu topology info is gathered in 0.000 seconds.
> Info: NAMD 2.12 for Linux-x86_64-multicore"
>
> What is the warning implying in general? Should I worry about that?
>
> *Denish Poudyal
> CDPTU, Nepal
>
> *

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