lapackpp-devel

[Lapackpp-devel] Error configuring with externally compiled Blas & Lapack

[Sonia S. <son...@gm...>]

Hi,

I am trying to compile lapackpp-2.5.0 on Suse Linux.
I am using Intel's MKL library containing Blas and Lapack libraries.
When I run configure giving the path to these libraries, it gives the
error of not finding functions in the blas/lapack libraries.
---------------------------------------------------------------------------------------------------------
> ./configure --with-blas=~/pacakages/mkl/lib/32/libmkl_ia32.a --with-lapack=~/pacakages/mkl/lib/32/libmkl_lapack.a
.
.
.
.
checking for dummy main to link with Fortran libraries... none
checking for Fortran name-mangling scheme... lower case, underscore,
no extra underscore
checking for sgemm_ in ~/pacakages/mkl/lib/32/libmkl_ia32.a... no
checking for sgemm_... no
checking if ATLAS should be used... yes
checking for ATLAS library... checking for f77blas library...
configure: WARNING: not found
checking for cblas library... configure: WARNING: not found
checking whether ATLAS is usable... configure: WARNING: no
checking for sgemm_ in -lblas... no
checking for sgemm_ in -lcxml... no
checking for sgemm_ in -ldxml... no
checking for sgemm_ in -lscs... no
checking for sgemm_ in -lcomplib.sgimath... no
checking for sgemm_ in -lblas... (cached) no
checking for sgemm_ in -lblas... (cached) no
checking for sgemm_ in -lblas32... no
checking for cheev_ in ~/pacakages/mkl/lib/32/libmkl_lapack.a... noblas
configure: error: Blas/Lapack was not found.
*** This means Lapack++ and matrix support cannot be compiled.
*** This makes this library unusable. Please get blas and lapack
*** installed. If you do have these installed, use the options
*** --with-blas=<libname> or --with-lapack=<libname> and/or set
*** the env variable LDFLAGS to include the appropriate linker
*** flags.
---------------------------------------------------------------------------------
But when I nm the libraries that I am linking to, I can find the
functions that configure was looking for.
--------------------------------------------------------------------------------
> nm ~/pacakages/mkl/lib/32/libmkl_ia32.a | grep sgemm_
def_sgemm_omp.o:
00000004 b ___kmpv_zeromkl_blas_def_sgemm_0
00000000 b ___kmpv_zeromkl_blas_def_sgemm_1
0000051a t L_mkl_blas_def_sgemm_276__par_loop0
0000081c t L_mkl_blas_def_sgemm_296__par_loop1
def_xsgemm_1.o:
00000000 T mkl_blas_def_xsgemm_1
         U mkl_blas_def_xsgemm_1
p3_sgemm_omp.o:
00000004 b ___kmpv_zeromkl_blas_p3_sgemm_0
00000000 b ___kmpv_zeromkl_blas_p3_sgemm_1
0000051a t L_mkl_blas_p3_sgemm_276__par_loop0
00000801 t L_mkl_blas_p3_sgemm_296__par_loop1
p4_sgemm_omp.o:
00000004 b ___kmpv_zeromkl_blas_p4_sgemm_0
00000000 b ___kmpv_zeromkl_blas_p4_sgemm_1
0000051a t L_mkl_blas_p4_sgemm_276__par_loop0
00000801 t L_mkl_blas_p4_sgemm_296__par_loop1
p4p_sgemm_omp.o:
00000004 b ___kmpv_zeromkl_blas_p4p_sgemm_0
00000000 b ___kmpv_zeromkl_blas_p4p_sgemm_1
0000051a t L_mkl_blas_p4p_sgemm_276__par_loop0
00000801 t L_mkl_blas_p4p_sgemm_296__par_loop1
p4m_sgemm_omp.o:
00000004 b ___kmpv_zeromkl_blas_p4m_sgemm_0
00000000 b ___kmpv_zeromkl_blas_p4m_sgemm_1
0000051a t L_mkl_blas_p4m_sgemm_276__par_loop0
00000801 t L_mkl_blas_p4m_sgemm_296__par_loop1
_sgemm_fb.o:
00000000 T sgemm_
-------------------------------------------------------
What could be the problem here ?

Thanks,
~ sonia

Re: [Lapackpp-devel] Error configuring with externally compiled Blas & Lapack

[Christian S. <sti...@tu...>]

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Hash: SHA1

Hi,

Sonia Singhal schrieb:
> I am trying to compile lapackpp-2.5.0 on Suse Linux.
> I am using Intel's MKL library containing Blas and Lapack libraries.
> When I run configure giving the path to these libraries, it gives the
> error of not finding functions in the blas/lapack libraries.
> ---------------------------------------------------------------------------------------------------------
>> ./configure --with-blas=~/pacakages/mkl/lib/32/libmkl_ia32.a --with-lapack=~/pacakages/mkl/lib/32/libmkl_lapack.a
> .
> .
> checking for dummy main to link with Fortran libraries... none
> checking for Fortran name-mangling scheme... lower case, underscore,
> no extra underscore
> checking for sgemm_ in ~/pacakages/mkl/lib/32/libmkl_ia32.a... no

This is the important error in the configure result -- according to the
"nm" output below, this check should have succeeded instead:

>> nm ~/pacakages/mkl/lib/32/libmkl_ia32.a | grep sgemm_
> ...
> _sgemm_fb.o:
> 00000000 T sgemm_

Can you open the file "config.log" that was created during configure,
and look for the exact (compiler/linker) error message on the failed
test? To find this place, search for the string "checking for sgemm_" in
that file. Maybe the compiler doesn't like the tilde ("~"), in which
case you should specify a complete absolute path name instead.

Regards,

Christian
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Re: [Lapackpp-devel] Error configuring with externally compiled Blas & Lapack

[Sonia S. <son...@gm...>]

Hi,
I gave the full path, and the config.log looks like this

-----------------------------------------------------------------

| }
configure:22227: result: no
configure:22237: checking for sgemm_
configure:22302: gcc -o conftest -g -O2   conftest.c
-L/afs/ece.cmu.edu/support/gcc/4.1.1/4.1.1-1/i386_suse93/image/usr/local/bin/../lib/gcc/i686-pc-linux-gnu/4.1.1
-L/afs/ece.cmu.edu/support/gcc/4.1.1/4.1.1-1/i386_suse93/image/usr/local/bin/../lib/gcc
-L/usr/local/lib/gcc/i686-pc-linux-gnu/4.1.1
-L/afs/ece.cmu.edu/support/gcc/4.1.1/4.1.1-1/i386_suse93/image/usr/local/bin/../lib/gcc/i686-pc-linux-gnu/4.1.1/../../..
-L/usr/local/lib/gcc/i686-pc-linux-gnu/4.1.1/../../.. -lgfortranbegin
-lgfortran -lm -lgcc_s >&5
/tmp/ccUC6VD8.o: In function `main':
/ux0/soniasin/packages/lapackpp-2.5.0/conftest.c:81: undefined
reference to `sgemm_'
/tmp/ccUC6VD8.o:(.data+0x0): undefined reference to `sgemm_'
collect2: ld returned 1 exit status
configure:22308: $? = 1
configure: failed program was:
-------------------------------------------------------------------------------------

Its not linking the blas lib that I have given in the config command line.
./configure --with-blas=/scratch2/sonia/packages/mkl/lib/32/libmkl_ia32.a
--with-lapack=/scratch2/sonia/packages/mkl/lib/32/libmkl_lapack.a

~ Sonia

On 1/25/07, Christian Stimming <sti...@tu...> wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> Hi,
>
> Sonia Singhal schrieb:
> > I am trying to compile lapackpp-2.5.0 on Suse Linux.
> > I am using Intel's MKL library containing Blas and Lapack libraries.
> > When I run configure giving the path to these libraries, it gives the
> > error of not finding functions in the blas/lapack libraries.
> > ---------------------------------------------------------------------------------------------------------
> >> ./configure --with-blas=~/pacakages/mkl/lib/32/libmkl_ia32.a --with-lapack=~/pacakages/mkl/lib/32/libmkl_lapack.a
> > .
> > .
> > checking for dummy main to link with Fortran libraries... none
> > checking for Fortran name-mangling scheme... lower case, underscore,
> > no extra underscore
> > checking for sgemm_ in ~/pacakages/mkl/lib/32/libmkl_ia32.a... no
>
> This is the important error in the configure result -- according to the
> "nm" output below, this check should have succeeded instead:
>
> >> nm ~/pacakages/mkl/lib/32/libmkl_ia32.a | grep sgemm_
> > ...
> > _sgemm_fb.o:
> > 00000000 T sgemm_
>
> Can you open the file "config.log" that was created during configure,
> and look for the exact (compiler/linker) error message on the failed
> test? To find this place, search for the string "checking for sgemm_" in
> that file. Maybe the compiler doesn't like the tilde ("~"), in which
> case you should specify a complete absolute path name instead.
>
> Regards,
>
> Christian
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> Version: GnuPG v1.4.2.1 (MingW32)
> Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org
>
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>

Re: [Lapackpp-devel] Error configuring with externally compiled Blas & Lapack

[Christian S. <sti...@tu...>]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Sonia Singhal schrieb:
> I gave the full path, and the config.log looks like this
> 
> -----------------------------------------------------------------
> configure:22227: result: no
> configure:22237: checking for sgemm_
> /tmp/ccUC6VD8.o: In function `main':
> /ux0/soniasin/packages/lapackpp-2.5.0/conftest.c:81: undefined
> reference to `sgemm_'
> /tmp/ccUC6VD8.o:(.data+0x0): undefined reference to `sgemm_'
> collect2: ld returned 1 exit status
> configure:22308: $? = 1
> configure: failed program was:
> -------------------------------------------------------------------------------------

There are several checks for sgemm_. The first one doesn't specify any
blas library, so it usually fails on every system. The second check
("checking for sgemm_ in") then uses the blas library and (hopefully)
succeeds.

Christian

> Its not linking the blas lib that I have given in the config command line.
> ./configure --with-blas=/scratch2/sonia/packages/mkl/lib/32/libmkl_ia32.a
> --with-lapack=/scratch2/sonia/packages/mkl/lib/32/libmkl_lapack.a


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