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Re: [cado-nfs] Memory usage at server restart.


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  • From: Paul Zimmermann <Paul.Zimmermann@inria.fr>
  • To: Paul Leyland <paul.leyland@gmail.com>
  • Cc: cado-nfs@inria.fr
  • Subject: Re: [cado-nfs] Memory usage at server restart.
  • Date: Sat, 18 Mar 2023 19:08:59 +0100
  • Authentication-results: mail3-relais-sop.national.inria.fr; dkim=none (message not signed) header.i=none; spf=SoftFail smtp.mailfrom=Paul.Zimmermann@inria.fr; spf=None smtp.helo=postmaster@salade

Hi Paul,

> A system here has relatively little RAM. It can run six copies of las
> with ease. With no sievers running it can equally easily run duplicate
> and singleton removal. What it can not do is run both simultaneously.
>
> Is it already possible to kill the local sievers (with -KILL perhaps, so
> one can guarantee to get their attention) when it is time to evaluate
> progress made, and to restart them afterwards if needed? At the moment I
> have to do this by hand, usually after the server dies with a OOM error.

you can try kill -STOP on the sievers when the duplicate and singleton
removal starts (and kill -CONT afterwards).

Otherwise with kill -KILL the sievers will die, and after some timeout
the server will restart them.

Paul Z.



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