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Re: Finding BLAS and LAPACK

From: John W. Eaton
Subject: Re: Finding BLAS and LAPACK
Date: Tue, 23 Feb 2010 20:37:40 -0500

On 23-Feb-2010, Mag Gam wrote:

| Unfortunately, this does not pick up BLAS
| I am using ./configure --prefix=/apps LDFLAGS="-L/apps/libs"
| Any other suggestion?
| configure:11325: checking for sgemm_ in -lblas
| configure:11358: gcc -o conftest -g -O2 -I/apps/hdf5-1.8.3/include
| -L/apps/hdf5-1.8.3/lib conftest.c -lblas  -lhdf5 -lz -lm
| -L/apps/hdf5-1.8.3/lib -L/usr/lib/gcc/x86_64-redhat-linux/3.4.6
| -L/usr/lib/gcc/x86_64-redhat-linux/3.4.6/../../../../lib64
| -L/usr/lib/gcc/x86_64-redhat-linux/3.4.6/../../.. -L/lib/../lib64
| -L/usr/lib/../lib64 -lhdf5 -lz -lfrtbegin -lg2c -lm >&5
| /usr/bin/ld: cannot find -lblas
| collect2: ld returned 1 exit status
| configure:11358: $? = 1
| I see this in my config.log

You'll need to give us more details, like which BLAS you are using and
how you compiled it.

What do you see if you run

  nm /apps/libs/your-blas-lib | grep -i sgemm



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