Yes, we saw the SMAP issue on earlier releases, added the kernel command line option to disable it. That is not the issue for this node. The Phi processors do not support that cpu feature.
— ddj > On Dec 7, 2016, at 9:37 AM, Felipe Knop <[email protected]> wrote: > > All, > > The SMAP issue has been addressed in GPFS in 4.2.1.1. > > See http://www.ibm.com/support/knowledgecenter/STXKQY/gpfsclustersfaq.html > <http://www.ibm.com/support/knowledgecenter/STXKQY/gpfsclustersfaq.html> > > Q2.4. > > Felipe > > ---- > Felipe Knop [email protected] > GPFS Development and Security > IBM Systems > IBM Building 008 > 2455 South Rd, Poughkeepsie, NY 12601 > (845) 433-9314 T/L 293-9314 > > > > > > From: Aaron Knister <[email protected]> > To: gpfsug main discussion list <[email protected]> > Date: 12/07/2016 09:25 AM > Subject: Re: [gpfsug-discuss] Any experience running native GPFS 4.2.1 > on Xeon Phi node booted with Centos 7.3? > Sent by: [email protected] > > > > I don't know if this applies her but I seem to recall an issue with CentOS 7 > (newer 3.X and on kernels), Broadwell processors and GPFS where GPFS upset > SMAP and would eventually get the node expelled. I think this may be fixed in > newer GPFS releases but the fix is to boot the kernel with the nosmap > parameter. Might be worth a try. I'm not clear on whether SMAP is supported > by the Xeon Phi's. > > -Aaron > > On Wed, Dec 7, 2016 at 5:34 AM <[email protected] > <mailto:[email protected]>> wrote: > IBM says it should work ok, we are not so sure. We had node expels that > stopped when we turned off gpfs on that node. Has anyone had better luck? > > -- ddj > Dave Johnson > _______________________________________________ > gpfsug-discuss mailing list > gpfsug-discuss at spectrumscale.org <http://spectrumscale.org/> > http://gpfsug.org/mailman/listinfo/gpfsug-discuss > <http://gpfsug.org/mailman/listinfo/gpfsug-discuss>_______________________________________________ > gpfsug-discuss mailing list > gpfsug-discuss at spectrumscale.org > http://gpfsug.org/mailman/listinfo/gpfsug-discuss > <http://gpfsug.org/mailman/listinfo/gpfsug-discuss> > > > _______________________________________________ > gpfsug-discuss mailing list > gpfsug-discuss at spectrumscale.org > http://gpfsug.org/mailman/listinfo/gpfsug-discuss
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