Q: lapackpp v2.2.0 lib usuage

[H W]

Dear Everyone,

I was trying to use Lapack++ v2.2.0 on my Linux (slackware 10) , the command
is like this:

gcc -o test Mat.o
test.o -L/local/d0p1/hw/lapackpp-2.2.0/lib -L/local/d0p1/hw/LAPACK -llapackp
p -llapack_LINUX -lblas_LINUX -lm

but got the following error message:

/local/d0p1/hw/LAPACK/liblapack_LINUX.a(ilaenv.o)(.text+0x4c): In function
`ilaenv_': undefined reference to `s_copy'
/local/d0p1/hw/LAPACK/liblapack_LINUX.a(ilaenv.o)(.text+0xe2): In function
`ilaenv_': undefined reference to `s_copy'
....
/local/d0p1/hw/LAPACK/liblapack_LINUX.a(dormbr.o)(.text+0xb5): In function
`dormbr_': undefined reference to `s_cat'
....
/local/d0p1/hw/LAPACK/liblapack_LINUX.a(dormlq.o)(.text+0x569): In function
`dormlq_': undefined reference to `s_cat'
....
....
/local/d0p1/hw/lapackpp-2.2.0/lib/liblapackpp.so: undefined reference to
`d_sign'
collect2: ld returned 1 exit status
make: *** [test] Error 1.

Does anyone have any idea why this happened? The blas and lapack library
files are under directory /local/d0p1/hw/LAPACK, named libblas_LINUX.a and
liblapack_LINUX.a, respectively. Lapackpp 2.2.0 is installed under
/local/d0p1/hw/lapackpp-2.2.0, and so the lib files are under
/local/d0p1/hw/lapackpp-2.2.0/lib. The fortran compiler used for compiling
the packages was g77. The 'make check' reports 'all passed'.

The code actually only has a variable declaration in it (of cause other
lines, and had my own matrix class in it, but they were running correctly
before and didn't use any of the lapack stuff):
#include "gmd.h"

....
LaMatGenDouble myMatrix(3,4);
....

And the error messages were the same even without this declaration.

Any advice is appreciated. Thank you very much,

Hongfang

[Paul Schneider]

H W wrote:

Dear Everyone,

I was trying to use Lapack++ v2.2.0 on my Linux (slackware 10) , the command
is like this:

gcc -o test Mat.o
test.o -L/local/d0p1/hw/lapackpp-2.2.0/lib -L/local/d0p1/hw/LAPACK -llapackp
p -llapack_LINUX -lblas_LINUX -lm

but got the following error message:

/local/d0p1/hw/LAPACK/liblapack_LINUX.a(ilaenv.o)(.text+0x4c): In function
`ilaenv_': undefined reference to `s_copy'
/local/d0p1/hw/LAPACK/liblapack_LINUX.a(ilaenv.o)(.text+0xe2): In function
`ilaenv_': undefined reference to `s_copy'
...
/local/d0p1/hw/LAPACK/liblapack_LINUX.a(dormbr.o)(.text+0xb5): In function
`dormbr_': undefined reference to `s_cat'
...
/local/d0p1/hw/LAPACK/liblapack_LINUX.a(dormlq.o)(.text+0x569): In function
`dormlq_': undefined reference to `s_cat'
...
...
/local/d0p1/hw/lapackpp-2.2.0/lib/liblapackpp.so: undefined reference to
`d_sign'
collect2: ld returned 1 exit status
make: *** [test] Error 1.

Does anyone have any idea why this happened? The blas and lapack library
files are under directory /local/d0p1/hw/LAPACK, named libblas_LINUX.a and
liblapack_LINUX.a, respectively. Lapackpp 2.2.0 is installed under
/local/d0p1/hw/lapackpp-2.2.0, and so the lib files are under
/local/d0p1/hw/lapackpp-2.2.0/lib. The fortran compiler used for compiling
the packages was g77. The 'make check' reports 'all passed'.

The code actually only has a variable declaration in it (of cause other
lines, and had my own matrix class in it, but they were running correctly
before and didn't use any of the lapack stuff):
#include "gmd.h"

...
LaMatGenDouble myMatrix(3,4);
...

And the error messages were the same even without this declaration.

Any advice is appreciated. Thank you very much,

Hongfang

Try giving the linker the following flag

-lg2c
p

[Lionel B]

H W wrote:

Dear Everyone,

I was trying to use Lapack++ v2.2.0 on my Linux (slackware 10) , the
command is like this:

gcc -o test Mat.o
test.o -L/local/d0p1/hw/lapackpp-2.2.0/lib -L/local/d0p1/hw/LAPACK
-llapackpp -llapack_LINUX -lblas_LINUX -lm

Just a guess, but the Lapack++ home page gives a linking example as:

gcc -L/usr/local/lib -llapackpp -lblas -llapack foo.o

Note that -lblas comes /before/ -llapack. Maybe try changeing the link
order (and perhaps libm is not required...)

Regards,

--
Lionel B

[H W]

"Paul Schneider" <pa*******@uboot.com> wrote in message
news:d3**********@trane.wu-wien.ac.at...

H W wrote:

Dear Everyone,

I was trying to use Lapack++ v2.2.0 on my Linux (slackware 10) , the command is like this:

gcc -o test Mat.o
test.o -L/local/d0p1/hw/lapackpp-2.2.0/lib -L/local/d0p1/hw/LAPACK -llapackp p -llapack_LINUX -lblas_LINUX -lm

but got the following error message:

/local/d0p1/hw/LAPACK/liblapack_LINUX.a(ilaenv.o)(.text+0x4c): In function `ilaenv_': undefined reference to `s_copy'
/local/d0p1/hw/LAPACK/liblapack_LINUX.a(ilaenv.o)(.text+0xe2): In function `ilaenv_': undefined reference to `s_copy'
...
/local/d0p1/hw/LAPACK/liblapack_LINUX.a(dormbr.o)(.text+0xb5): In function `dormbr_': undefined reference to `s_cat'
...
/local/d0p1/hw/LAPACK/liblapack_LINUX.a(dormlq.o)(.text+0x569): In function `dormlq_': undefined reference to `s_cat'
...
...
/local/d0p1/hw/lapackpp-2.2.0/lib/liblapackpp.so: undefined reference to
`d_sign'
collect2: ld returned 1 exit status
make: *** [test] Error 1.

Does anyone have any idea why this happened? The blas and lapack library
files are under directory /local/d0p1/hw/LAPACK, named libblas_LINUX.a and liblapack_LINUX.a, respectively. Lapackpp 2.2.0 is installed under
/local/d0p1/hw/lapackpp-2.2.0, and so the lib files are under
/local/d0p1/hw/lapackpp-2.2.0/lib. The fortran compiler used for compiling the packages was g77. The 'make check' reports 'all passed'.

The code actually only has a variable declaration in it (of cause other
lines, and had my own matrix class in it, but they were running correctly before and didn't use any of the lapack stuff):
#include "gmd.h"

Try giving the linker the following flag

-lg2c
p

Thank you for you reply. Used the flag, and got the following error message:

../test error while loading shared libraries: liblapackpp.so.1: cannot open
shared object file: no such file or directory.

Could you please give me some hint of this?

Thanks a lot,

Hongfang

[H W]

Solved!

first, add -lg2c when linking
second, set environment variable:
export
LD_LIBRARY_PATH=/local/d0p1/hw/lapackpp-2.2.0/lib:/local/d0p1/hw/LAPACK

cheers.

Hongfang

"H W" <h_******************@yahoo.com> wrote in message
news:d4**********@pump1.york.ac.uk...

"Paul Schneider" <pa*******@uboot.com> wrote in message
news:d3**********@trane.wu-wien.ac.at...

H W wrote:

Dear Everyone,

I was trying to use Lapack++ v2.2.0 on my Linux (slackware 10) , the command is like this:

gcc -o test Mat.o
test.o -L/local/d0p1/hw/lapackpp-2.2.0/lib -L/local/d0p1/hw/LAPACK -llapackp

p -llapack_LINUX -lblas_LINUX -lm

but got the following error message:

/local/d0p1/hw/LAPACK/liblapack_LINUX.a(ilaenv.o)(.text+0x4c): In function `ilaenv_': undefined reference to `s_copy'
/local/d0p1/hw/LAPACK/liblapack_LINUX.a(ilaenv.o)(.text+0xe2): In function `ilaenv_': undefined reference to `s_copy'
...
/local/d0p1/hw/LAPACK/liblapack_LINUX.a(dormbr.o)(.text+0xb5): In function `dormbr_': undefined reference to `s_cat'
...
/local/d0p1/hw/LAPACK/liblapack_LINUX.a(dormlq.o)(.text+0x569): In function `dormlq_': undefined reference to `s_cat'
...
...
/local/d0p1/hw/lapackpp-2.2.0/lib/liblapackpp.so: undefined reference to `d_sign'
collect2: ld returned 1 exit status
make: *** [test] Error 1.

Does anyone have any idea why this happened? The blas and lapack library files are under directory /local/d0p1/hw/LAPACK, named libblas_LINUX.a and liblapack_LINUX.a, respectively. Lapackpp 2.2.0 is installed under
/local/d0p1/hw/lapackpp-2.2.0, and so the lib files are under
/local/d0p1/hw/lapackpp-2.2.0/lib. The fortran compiler used for compiling the packages was g77. The 'make check' reports 'all passed'.

The code actually only has a variable declaration in it (of cause other lines, and had my own matrix class in it, but they were running correctly before and didn't use any of the lapack stuff):
#include "gmd.h"

Try giving the linker the following flag

-lg2c
p

Thank you for you reply. Used the flag, and got the following error

message:
./test error while loading shared libraries: liblapackpp.so.1: cannot open
shared object file: no such file or directory.

Could you please give me some hint of this?

Thanks a lot,

Hongfang

[lqkhai]

Solved!

first, add -lg2c when linking
second, set environment variable:
export
LD_LIBRARY_PATH=/local/d0p1/hw/lapackpp-2.2.0/lib:/local/d0p1/hw/LAPACK

cheers.

Hongfang

"H W" <[e-mail]> wrote in message
news:d4140k$lbp$[e-mail]...[color=blue]
> "Paul Schneider" <[e-mail]> wrote in message
> news:d3vt3t$b75$[e-mail]...[color=green]
> > H W wrote:[color=darkred]
> > > Dear Everyone,
> > >
> > > I was trying to use Lapack++ v2.2.0 on my Linux (slackware 10) , the[/color][/color]
> command[color=green][color=darkred]
> > > is like this:
> > >
> > > gcc -o test Mat.o
> > >[/color][/color]
>[/color]
test.o -L/local/d0p1/hw/lapackpp-2.2.0/lib -L/local/d0p1/hw/LAPACK -llapackp[color=blue][color=green][color=darkred]
> > > p -llapack_LINUX -lblas_LINUX -lm
> > >
> > > but got the following error message:
> > >
> > > /local/d0p1/hw/LAPACK/liblapack_LINUX.a(ilaenv.o)(.text+0x4c): In[/color][/color]
> function[color=green][color=darkred]
> > > `ilaenv_': undefined reference to `s_copy'
> > > /local/d0p1/hw/LAPACK/liblapack_LINUX.a(ilaenv.o)(.text+0xe2): In[/color][/color]
> function[color=green][color=darkred]
> > > `ilaenv_': undefined reference to `s_copy'
> > > ...
> > > /local/d0p1/hw/LAPACK/liblapack_LINUX.a(dormbr.o)(.text+0xb5): In[/color][/color]
> function[color=green][color=darkred]
> > > `dormbr_': undefined reference to `s_cat'
> > > ...
> > > /local/d0p1/hw/LAPACK/liblapack_LINUX.a(dormlq.o)(.text+0x569): In[/color][/color]
> function[color=green][color=darkred]
> > > `dormlq_': undefined reference to `s_cat'
> > > ...
> > > ...
> > > /local/d0p1/hw/lapackpp-2.2.0/lib/liblapackpp.so: undefined reference[/color][/color][/color]
to[color=blue][color=green][color=darkred]
> > > `d_sign'
> > > collect2: ld returned 1 exit status
> > > make: *** [test] Error 1.
> > >
> > > Does anyone have any idea why this happened? The blas and lapack[/color][/color][/color]
library[color=blue][color=green][color=darkred]
> > > files are under directory /local/d0p1/hw/LAPACK, named libblas_LINUX.a[/color][/color]
> and[color=green][color=darkred]
> > > liblapack_LINUX.a, respectively. Lapackpp 2.2.0 is installed under
> > > /local/d0p1/hw/lapackpp-2.2.0, and so the lib files are under
> > > /local/d0p1/hw/lapackpp-2.2.0/lib. The fortran compiler used for[/color][/color]
> compiling[color=green][color=darkred]
> > > the packages was g77. The 'make check' reports 'all passed'.
> > >
> > > The code actually only has a variable declaration in it (of cause[/color][/color][/color]
other[color=blue][color=green][color=darkred]
> > > lines, and had my own matrix class in it, but they were running[/color][/color]
> correctly[color=green][color=darkred]
> > > before and didn't use any of the lapack stuff):
> > > #include "gmd.h"
> > >[/color]
> > Try giving the linker the following flag
> >
> > -lg2c
> >
> >
> > p[/color]
>
> Thank you for you reply. Used the flag, and got the following error[/color]
message:[color=blue]
>
> ./test error while loading shared libraries: liblapackpp.so.1: cannot open
> shared object file: no such file or directory.
>
> Could you please give me some hint of this?
>
> Thanks a lot,
>
> Hongfang
>
>[/color]

LD_LIBRARY_PATH=/local/d0p1/hw/lapackpp-2.2.0/lib:/local/d0p1/hw/LAPACK

Dear,
No have lib folder in lapackpp-2.2.0 folder.
Please check it again.
Anyway, I have installed lappackpp successful in my debian linux. After I compiled my lapackpp c++ file, I executed the out file. The system told that
Segmentation fault

#include "iostream"
#include "fstream"
#include "lapackpp.h"

#define N 3

using namespace std;

void out1DArray(LaVectorDouble a,double n);
void input2DArray(LaGenMatDouble &a,double n);
void input1DArray(LaVectorDouble &a,double n);
void createMatrixA(LaSymmMatDouble &a);
void createMatrixA(LaGenMatDouble &a);

int main()
{
//LaSymmMatDouble A(N,N);
LaGenMatDouble A(N,N);
LaVectorDouble vreal(N);
LaVectorDouble vimag(N);
//LaVectorComplex v(N);
LaGenMatDouble V(N,N);

//input2DArray(A,N);

createMatrixA(A);
cout << A << endl;

LaEigSolve(A,vreal,vimag,V);
cout << "chua co loi" << endl;
cout << "The eigenvalues" << endl;
//out1DArray(v,3);
cout << vreal << endl;
cout << endl;
cout << vimag << endl;
cout << "The corresponding eigenvectors" << endl;
cout << V << endl;
ofstream EigV("EigVector.txt");
EigV << V << endl;
return 0;
}

void createMatrixA(LaSymmMatDouble &a)
{
int i,j;
a(0,0)=1.0;
for(i=1;i<N;i++)
{
for(j=1;j<N;j++)
{
if(j!=i) a(i,j+2)=0.0;
if(j==i)
{
a(i,j)=1.0;
a(i,j+1)=2.0;
a(i,j+2)=1.0;
}
}
}
}

void createMatrixA(LaGenMatDouble &a)
{
int i,j;
a(0,0)=1.0;
for(i=0;i<N;i++)
for(j=0;j<N;j++)
{
if(j!=i) a(i,j+2)=0.0;
if(j==i)
{
a(i,j)=1.0;
a(i,j+1)=2.0;
a(i,j+2)=1.0;
}
}
}

void input2DArray(LaGenMatDouble &a,double n)
{
int i,j;
for(i=0;i<n;i++)
for(j=0;j<n;j++)
{
cout << "Input a[" << i << "][" << j << "]= ";
cin >> a(i,j);
}
}


void input1DArray(LaVectorDouble &a,double n)
{
int i,j;
for(i=0;i<n;i++)
{
cout << "Input B[" << i << "]= ";
cin >> a(i);
cout << endl;
}
}

void out1DArray(LaVectorDouble a,double n)
{
int i;
for(i=0;i<n;i++)
cout << a(i) << " " << endl;
}

Please help me.

Thank in advance

lqkhai