Hi Lohit, Nathan Would you be willing to share some more details about your setup? We are just getting started here and I would like to hear about what your configuration looks like. Direct email to me is fine, thanks.
Bob Oesterlin Sr Principal Storage Engineer, Nuance From: <[email protected]> on behalf of "[email protected]" <[email protected]> Reply-To: gpfsug main discussion list <[email protected]> Date: Thursday, April 26, 2018 at 9:45 AM To: gpfsug main discussion list <[email protected]> Subject: [EXTERNAL] Re: [gpfsug-discuss] Singularity + GPFS We do run Singularity + GPFS, on our production HPC clusters. Most of the time things are fine without any issues. However, i do see a significant performance loss when running some applications on singularity containers with GPFS. As of now, the applications that have severe performance issues with singularity on GPFS - seem to be because of “mmap io”. (Deep learning applications) When i run the same application on bare metal, they seem to have a huge difference in GPFS IO when compared to running on singularity containers. I am yet to raise a PMR about this with IBM. I have not seen performance degradation for any other kind of IO, but i am not sure. Regards, Lohit On Apr 26, 2018, 10:35 AM -0400, Nathan Harper <[email protected]>, wrote: We are running on a test system at the moment, and haven't run into any issues yet, but so far it's only been 'hello world' and running FIO. I'm interested to hear about experience with MPI-IO within Singularity. On 26 April 2018 at 15:20, Oesterlin, Robert <[email protected]<mailto:[email protected]>> wrote: Anyone (including IBM) doing any work in this area? I would appreciate hearing from you. Bob Oesterlin Sr Principal Storage Engineer, Nuance _______________________________________________ gpfsug-discuss mailing list gpfsug-discuss at spectrumscale.org<https://urldefense.proofpoint.com/v2/url?u=http-3A__spectrumscale.org&d=DwMFaQ&c=djjh8EKwHtOepW4Bjau0lKhLlu-DxM1dlgP0rrLsOzY&r=LPDewt1Z4o9eKc86MXmhqX-45Cz1yz1ylYELF9olLKU&m=_6XPyvEYCL-PnMjKsOcjeRy1H19CJ1ujTFPrAEwWnLo&s=OTGc6UhyurUT-JrFZxFuLp_VKCTGGknEbzjMSKUa-QQ&e=> http://gpfsug.org/mailman/listinfo/gpfsug-discuss<https://urldefense.proofpoint.com/v2/url?u=http-3A__gpfsug.org_mailman_listinfo_gpfsug-2Ddiscuss&d=DwMFaQ&c=djjh8EKwHtOepW4Bjau0lKhLlu-DxM1dlgP0rrLsOzY&r=LPDewt1Z4o9eKc86MXmhqX-45Cz1yz1ylYELF9olLKU&m=_6XPyvEYCL-PnMjKsOcjeRy1H19CJ1ujTFPrAEwWnLo&s=hPDughTsSwQUdR8KHv4gxXMumoGw3jXLgGGXG1MQrJM&e=> -- Nathan Harper // IT Systems Lead [Image removed by sender.]<https://urldefense.proofpoint.com/v2/url?u=https-3A__cfms.org.uk_news-2Devents_events_2018_july_farnborough-2Dinternational-2Dairshow-2D2018_&d=DwMFaQ&c=djjh8EKwHtOepW4Bjau0lKhLlu-DxM1dlgP0rrLsOzY&r=LPDewt1Z4o9eKc86MXmhqX-45Cz1yz1ylYELF9olLKU&m=_6XPyvEYCL-PnMjKsOcjeRy1H19CJ1ujTFPrAEwWnLo&s=SAiH6rxM-6WYWwUBRecbBS9Yr7f4adg4GizgVJXIAqI&e=> e: [email protected]<mailto:[email protected]> t: 0117 906 1104 m: 0787 551 0891 w: www.cfms.org.uk<https://urldefense.proofpoint.com/v2/url?u=http-3A__www.cfms.org.uk_&d=DwMFaQ&c=djjh8EKwHtOepW4Bjau0lKhLlu-DxM1dlgP0rrLsOzY&r=LPDewt1Z4o9eKc86MXmhqX-45Cz1yz1ylYELF9olLKU&m=_6XPyvEYCL-PnMjKsOcjeRy1H19CJ1ujTFPrAEwWnLo&s=KAbz_Md-BsCIrN6LDOb6Yc7sriwSq5IeO4aaxRGQfjc&e=> CFMS Services Ltd // Bristol & Bath Science Park // Dirac Crescent // Emersons Green // Bristol // BS16 7FR [Image removed by sender.] CFMS Services Ltd is registered in England and Wales No 05742022 - a subsidiary of CFMS Ltd CFMS Services Ltd registered office // 43 Queens Square // Bristol // BS1 4QP _______________________________________________ gpfsug-discuss mailing list gpfsug-discuss at spectrumscale.org http://gpfsug.org/mailman/listinfo/gpfsug-discuss
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