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Re: intel mkl

From: javaloye
Subject: Re: intel mkl
Date: Thu, 5 Aug 2010 08:58:13 -0700 (PDT)

thanks a lot, I have been using the following flags

export F77=ifort 
export FFLAGS="-O3 -xT -funroll-loops"
export CC="icc"
export CFLAGS="-O2 -xT -mieee-fp"
export CXX="icpc"
export CXXFLAGS="-w -O2 -xT -mieee-fp"
export CPP="icc -E"
export CXXPP="icpc -E"
export BLAS_LIBS="-L/opt/intel/Compiler/11.1/072/mkl/lib/em64t/
-I/opt/intel/Compiler/11.1/072/include/ -lmkl_intel_lp64 -lmkl_sequential
-lmkl_core -lpthread"

./configure --prefix=$HOME/myoctave3352 --disable-extra-warning-flags

At first, it seems to work better, but I am now facing compilation failure
with message 

./.libs/ undefined reference to `__builtin_isfinite'
./.libs/ undefined reference to `__builtin_isnan'
./.libs/ undefined reference to `__builtin_isinf'

>From what I saw on intel forums, I have the impression that it is a bug from
icc and icpc.
Anyway, that is not a big deal as the performances are already very good
using the following combination gcc + g++ + ifort + mkl.

Thanks anyway !

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