From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Original-To: caml-list@yquem.inria.fr Delivered-To: caml-list@yquem.inria.fr Received: from nez-perce.inria.fr (nez-perce.inria.fr [192.93.2.78]) by yquem.inria.fr (Postfix) with ESMTP id A6A1CBBBB for ; Wed, 1 Mar 2006 12:05:49 +0100 (CET) Received: from gw-eur4.philips.com (gw-eur4.philips.com [161.85.125.10]) by nez-perce.inria.fr (8.13.0/8.13.0) with ESMTP id k21B5mhO024100 for ; Wed, 1 Mar 2006 12:05:49 +0100 Received: from smtpscan-eur5.philips.com (smtpscan-eur5.mail.philips.com [130.144.57.168]) by gw-eur4.philips.com (Postfix) with ESMTP id 9529B49716 for ; Wed, 1 Mar 2006 11:05:48 +0000 (UTC) Received: from smtpscan-eur5.philips.com (localhost [127.0.0.1]) by localhost.philips.com (Postfix) with ESMTP id C89C16A for ; Wed, 1 Mar 2006 11:05:36 +0000 (GMT) Received: from smtprelay-eur2.philips.com (smtprelay-eur2.philips.com [130.144.57.171]) by smtpscan-eur5.philips.com (Postfix) with ESMTP id B36E7B7 for ; Wed, 1 Mar 2006 11:05:24 +0000 (GMT) Received: from ehvrmh02.diamond.philips.com (ehvrmh02-srv.diamond.philips.com [130.139.27.125]) by smtprelay-eur2.philips.com (Postfix) with ESMTP id 5CEB74C for ; Wed, 1 Mar 2006 11:05:24 +0000 (GMT) To: caml-list@yquem.inria.fr Subject: OCaml program crashes after computing fine for 2 days during grep on multiMB output file MIME-Version: 1.0 X-Mailer: Lotus Notes Release 6.0.3 September 26, 2003 From: Andries Hekstra Message-ID: Date: Wed, 1 Mar 2006 12:03:34 +0100 X-MIMETrack: Serialize by Router on ehvrmh02/H/SERVER/PHILIPS(Release 6.5.3FP1HF291 | September 19, 2005) at 01/03/2006 12:04:08, Serialize complete at 01/03/2006 12:04:08 Content-Type: multipart/alternative; boundary="=_alternative 003CDD84C1257124_=" X-Miltered: at nez-perce with ID 4405800C.000 by Joe's j-chkmail (http://j-chkmail.ensmp.fr)! X-Spam: no; 0.00; ocaml:01 ocaml-list:01 ocaml:01 computations:01 arrays:01 computations:01 succesfully:01 exited:01 eindhoven:01 ocaml-list:01 arrays:01 succesfully:01 exited:01 eindhoven:01 optical:98 X-Spam-Checker-Version: SpamAssassin 3.0.3 (2005-04-27) on yquem.inria.fr X-Spam-Level: X-Spam-Status: No, score=0.5 required=5.0 tests=HTML_20_30,HTML_MESSAGE autolearn=disabled version=3.0.3 This is a multipart message in MIME format. --=_alternative 003CDD84C1257124_= Content-Type: text/plain; charset="US-ASCII" Dear OCaml-list, I use OCaml under 64-bit Linux to do signal processing simulations of next generation optical storage devices. So far, I have really enjoyed programming in OCaml, e.g. as program texts are considerable shorter than in C++ for computations that involve many arrays. My computations run for many days if not a week, and produce output files of ca. 20 MB. I run them in a job queue. Recently I have been plagued by programs that crash when I do a "grep" on the output file (opened with open_out). E.g. the program has been running succesfully for a few days. I do a "grep @ *.out" in the directory to monitor progress as important lines in the output file start with a "@". A few minutes later I receive mails from the queuing system saying that everything crashed. What is the cause of these crashes? Can somebody give me a clue? Thanx, Andries ------------------------------------------------------------ # LSBATCH: User input qtb -par Exp107.txt > Exp107.txt.log -codes gallager_10b_1023l_1048576w.txt ------------------------------------------------------------ Exited with exit code 2. Resource usage summary: CPU time : 163606.88 sec. Max Memory : 3014 MB Max Swap : 3044 MB Max Processes : 3 The output (if any) follows: Fatal error: exception Sys_error("Stale NFS file handle") ------------------------------------------------------------------------ Dr. Ir. Andries P. Hekstra Philips Research High Tech Campus 27 (WL-1-4.15) 5656 AG Eindhoven Tel./Fax/Secr. +31 40 27 42048/42566/44051 * Good open source break software for computer users : http://www.workrave.org --=_alternative 003CDD84C1257124_= Content-Type: text/html; charset="US-ASCII"
Dear OCaml-list,

I use OCaml under 64-bit Linux to do signal processing simulations of next generation optical storage devices. So far, I have really enjoyed programming in OCaml, e.g. as program texts are considerable shorter than in C++ for computations that involve many arrays. My computations run for many days if not a week, and produce output files of ca. 20 MB. I run them in a job queue.

Recently I have been plagued by programs that crash when I do a "grep" on the output file (opened with open_out). E.g. the program has been running succesfully for a few days. I do a "grep @ *.out" in the directory to monitor progress as important lines in the output file start with a "@". A few minutes later I receive mails from the queuing system saying that everything crashed.

What is the cause of these crashes? Can somebody give me a clue?

Thanx,

Andries

------------------------------------------------------------
# LSBATCH: User input
qtb -par Exp107.txt > Exp107.txt.log -codes gallager_10b_1023l_1048576w.txt
------------------------------------------------------------

Exited with exit code 2.

Resource usage summary:

   CPU time   : 163606.88 sec.
   Max Memory :      3014 MB
   Max Swap   :      3044 MB

   Max Processes  :         3

The output (if any) follows:

Fatal error: exception Sys_error("Stale NFS file handle")


------------------------------------------------------------------------
Dr. Ir. Andries P. Hekstra
Philips Research
High Tech Campus 27  (WL-1-4.15)
5656 AG Eindhoven
Tel./Fax/Secr. +31 40 27 42048/42566/44051
  *  Good open source break software for computer users : http://www.workrave.org   --=_alternative 003CDD84C1257124_=--