topic You have not told us what you in Intel® oneAPI Math Kernel Library

Shared Library for Intel fftw wrapper

ma_x_ — Thu, 20 Jul 2017 14:02:21 GMT

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

You have not told us what you

mecej4 — Thu, 20 Jul 2017 19:56:18 GMT

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>

Dear mecej4,

ma_x_ — Fri, 21 Jul 2017 01:59:00 GMT

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!

Hi Ma X.

Ying_H_Intel — Mon, 24 Jul 2017 08:53:31 GMT

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

Many thanks to you Ying, I

ma_x_ — Tue, 25 Jul 2017 07:30:20 GMT

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