topic i solved the problem. i in Intel® oneAPI Math Kernel Library https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/DFTIfreedescriptor-error-message/m-p/921050#M12985 i solved the problem. i increase the input array size. Wed, 17 Oct 2012 10:12:49 GMT rakesh 2012-10-17T10:12:49Z DFTIfreedescriptor error message https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/DFTIfreedescriptor-error-message/m-p/921048#M12983 <P>Hi,&nbsp;</P> <P>i'm getting dftifreedescriptor error message during runtime as 5.</P> <P>ideally it should be 0.</P> <P>how to resolve the issue.</P> <P>please tell me.</P> <P>With Regards,</P> <P>Rakesh</P> Wed, 10 Oct 2012 06:19:45 GMT https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/DFTIfreedescriptor-error-message/m-p/921048#M12983 rakesh 2012-10-10T06:19:45Z Rakesh, https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/DFTIfreedescriptor-error-message/m-p/921049#M12984 Rakesh, Please share with us your small testcase to reproduce this problem if possible... Error code 5 "DFTI_BAD_DESCRIPTOR" means that your descriptor is incorrect or corrupted Wed, 10 Oct 2012 07:32:39 GMT https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/DFTIfreedescriptor-error-message/m-p/921049#M12984 barragan_villanueva_ 2012-10-10T07:32:39Z i solved the problem. i https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/DFTIfreedescriptor-error-message/m-p/921050#M12985 i solved the problem. i increase the input array size. Wed, 17 Oct 2012 10:12:49 GMT https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/DFTIfreedescriptor-error-message/m-p/921050#M12985 rakesh 2012-10-17T10:12:49Z