Shared Library for Intel fftw wrapper

[ma_x_]

Dear Engineer,

I am a newbee for complier opensource software. Also I found that intel parallel XE support FFTW wrapper include C and Fortran interface, I successful complier the .a static library on CentOS 7 Linux, I want to know, how to  complier a shared library .so?

Thanks a lot and best wishes!

Weasley

[mecej4]

You have not told us what you put into your static library. If the objects in that library do not contain a "main" program, you can use the a command similar to the following. All items between carets are to be replaced with appropriate names.

     <compiler_driver_name> -shared *.o -L<library_path> -l<MKL_and_other_libraries> -o <mydll.so>

[ma_x_]

Dear mecej4,

First thanks for your fast reply. I am sorry I am not say it clearly....

I mean I use this url https://software.intel.com/en-us/mkl-developer-reference-c-building-your-own-wrapper-library, and can successful build my own libfftw3xf_intel.a, but how to build a shared library "libfftw3xf_intel.so" ?

Thanks a lot!

[Ying_H_Intel · Accepted solution]

Hi Ma X.

Do you have any special request about shared fftwf library?

But  as fftw wrapper itself was integrated to mkl shared library,  you can use MKL shared library directly for FFTW application. find the required mkl library by https://software.intel.com/en-us/articles/intel-mkl-link-line-advisor/

If you have to use one shared library ,   you may change the makefile as below

$(INSTALL_LIBNAME) =  libfftw3xf_$(compiler).so

$(INSTALL_DIR)/$(INSTALL_LIBNAME): $(WRAP:%=$(obj_path)/%.o)
        ld -o  $@ $^

Best Regards,

Ying
 

[ma_x_]

Many thanks to you Ying, I will have a try.