[mvapich-discuss] Registration cache problem

[Alexander Melnikov]

Many thanks, Hari. For some reason, two lines in the patch were truncated
(PRINT_DEBUG in flush_delayed_dregs). However, it looks like your patch is
working. We will check further on real programs.
Best regards, Alexander Melnikov.

чт, 2 июл. 2020 г. в 23:20, Subramoni, Hari <subramoni.1 at osu.edu>:

> Hi, Alexander.
>
>
>
> We looked at the issue. Your patch does solve the problem. However, we
> thought the attached patch may be a safer way. We tried it locally and the
> application seems to run fine. Can you please try it out and see if it
> solves your issue?
>
>
>
> Best,
>
> Hari.
>
>
>
> *From:* alex.i.melnikov at gmail.com <alex.i.melnikov at gmail.com>
> *Sent:* Monday, June 29, 2020 10:36 AM
> *To:* mvapich-discuss at cse.ohio-state.edu <
> mvapich-discuss at mailman.cse.ohio-state.edu>
> *Cc:* Subramoni, Hari <subramoni.1 at osu.edu>
> *Subject:* Registration cache problem
>
>
>
> Perhaps the problem is with the delayed registration. A small patch (in
> the attachment) solved the problem for me, but I'm not sure of its
> correctness.
>
> Best regards, Alexander Melnikov.
>
> *From:* Subramoni, Hari <subramoni.1 at osu.edu>
>
> *Sent:* Monday, June 29, 2020 4:46 PM
>
> *To:* Alexander Melnikov <alex.i.melnikov at gmail.com> ;
> mailto:mvapich-discuss at mailman.cse.ohio-state.edu
> <mvapich-discuss at mailman.cse.ohio-state.edu>
>
> *Cc:* Subramoni, Hari <subramoni.1 at osu.edu>
>
> *Subject:* RE: [mvapich-discuss] Registration cache problem
>
>
>
> Hi, Alexander.
>
>
>
> Thanks for reporting the issue. We appreciate it.
>
>
>
> We are able to reproduce it. We are looking into it and will get back to
> you.
>
>
>
> Best,
>
> Hari.
>
>
>
> *From:* mvapich-discuss-bounces at cse.ohio-state.edu <
> mvapich-discuss-bounces at mailman.cse.ohio-state.edu> *On Behalf Of *Alexander
> Melnikov
> *Sent:* Monday, June 29, 2020 1:07 AM
> *To:* mvapich-discuss at cse.ohio-state.edu <
> mvapich-discuss at mailman.cse.ohio-state.edu>
> *Subject:* [mvapich-discuss] Registration cache problem
>
>
>
> Hey. Can anyone check out a little test (in the attachment)? On each node,
> one MPI process starts, a small number of nodes is enough (3-6). We used
> the MVAPICH2 library versions 2.3.3 and 2.3.4, the compiler - GCC 4.8.5.
> Almost all tests fail (bad data in rcv_thread). However, when the
> registration cache is disabled (MV2_USE_LAZY_MEM_UNREGISTER = 0), the error
> disappears.
>
>
>
>
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