From jmacdon at med.umich.edu  Mon Oct 16 17:45:20 2006
From: jmacdon at med.umich.edu (James W. MacDonald)
Date: Mon, 16 Oct 2006 11:45:20 -0400
Subject: [Rd] x86_64, acml-3.5.0-gfortran64 and lme4
In-Reply-To: <67DCA285A2D7754280D3B8E88EB548020C946941@MSGBOSCLB2WIN.DMN1.FMR.COM>
References: <67DCA285A2D7754280D3B8E88EB548020C946941@MSGBOSCLB2WIN.DMN1.FMR.COM>
Message-ID: <4533A910.5090404@med.umich.edu>

I am not encountering segfaults either, using earlier versions of 
gcc/gfortran64 (4.0.0) and acml (3.0.0) on a 64 bit build of R-2.4.0 on 
Fedora Core 4

Best,

Jim



McGehee, Robert wrote:
> I am not encountering segfaults on a 64-bit build of R 2.4.0 compiled
> with gcc and g77 3.4.5 and ATLAS 3.6.0 on a Red Hat Athlon64 system.
> 
> -----Original Message-----
> From: r-devel-bounces at r-project.org
> [mailto:r-devel-bounces at r-project.org] On Behalf Of Douglas Bates
> Sent: Monday, October 16, 2006 10:26 AM
> To: R Development Mailing List
> Subject: [Rd] x86_64, acml-3.5.0-gfortran64 and lme4
> 
> I am encountering segfaults when checking the lme4 package on an
> Athlon64 system if I use the acml blas.  R was built as a 64-bit
> application using the GCC 4.0.3 compiler suite including gfortran.
> The version of acml is 3.5.0 gfortran64.
> 
> I do not encounter the segfaults when I compile R with R's built-in
> BLAS.  The errors occur in the first example in lme4 in a call to
> lmer. It looks like they would occur in any call to lmer.  Running
> under the debugger shows that the segfault occurs in a call to dtrsm
> (a level-3 BLAS routine to solve a triangular system of equations)
> that is called from within a cholmod (sparse matrix library) routine.
> 
> Has anyone succeeded in running R CMD check on the lme4 package with
> accelerated BLAS?  I'm trying to pin down is this occurs only with
> ACML or also with Atlas and/or Goto's BLAS.
> 
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> 
> ______________________________________________
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-- 
James W. MacDonald
Affymetrix and cDNA Core
University of Michigan Cancer Center
1500 E. Medical Center Drive
7410 CCGC
734-647-5623


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[Rd] x86_64, acml-3.5.0-gfortran64 and lme4
James W. MacDonald