Questions on using LAPACK in gfortran with eclipse

Man Yue · December 25, 2015, 23:51

I am currently using gfortran (from cygwin) with eclipse GUI. The gfortran can work for simple things but I have a hard time when I need LAPACK to invert matrices and solve system of linear equations (to solve equations for flow instability problems).

I have a source code which has a command

Code:

CALL DGESV(3,1,MAT1,3,ipiv,b,3,info)

in the code.

I have obtained the LAPACK when I downloaded cygwin, and I compiled my gfortran code with the linker:

Code:

gfortran -o  "matrix_func"  ./matrix_func.o    -L"C:\cygwin64\lib" -llapack -lblas

The source code seems to be successfully compiled, however, when I run the program, the program terminates automatically. When I remove the DGESV command and compile--> run, the program can be successfully run.

What is the reason of this, and how can I use LAPACK package in gfortran?

Thank you.

Man Yue · December 26, 2015, 01:22

I have also tried Run-->Debug As-->Local Fortran Application.
I have then receive error message: gdb/mi (suspended) <During startup program exited with code 0xc0000135.>

Any clues to the cause of the problem?

December 25, 2015, 23:51	Questions on using LAPACK in gfortran with eclipse	#1
Man Yue New Member anonymous Join Date: Mar 2011 Posts: 11 Rep Power: 15	I am currently using gfortran (from cygwin) with eclipse GUI. The gfortran can work for simple things but I have a hard time when I need LAPACK to invert matrices and solve system of linear equations (to solve equations for flow instability problems). I have a source code which has a command Code: CALL DGESV(3,1,MAT1,3,ipiv,b,3,info) in the code. I have obtained the LAPACK when I downloaded cygwin, and I compiled my gfortran code with the linker: Code: gfortran -o "matrix_func" ./matrix_func.o -L"C:\cygwin64\lib" -llapack -lblas The source code seems to be successfully compiled, however, when I run the program, the program terminates automatically. When I remove the DGESV command and compile--> run, the program can be successfully run. What is the reason of this, and how can I use LAPACK package in gfortran? Thank you.

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December 26, 2015, 01:22		#2
Man Yue New Member anonymous Join Date: Mar 2011 Posts: 11 Rep Power: 15	I have also tried Run-->Debug As-->Local Fortran Application. I have then receive error message: gdb/mi (suspended) <During startup program exited with code 0xc0000135.> Any clues to the cause of the problem?