https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/MKL-INTERNAL-ERROR-Condition-0-detected-in-function-CFFT1D/m-p/912907#M12295 <P>Hi,</P> <P>If you are trying to use the FFT directly from MKL, note that there are two sets of interfaces that MKL supports. One of them is deprecated and the interface you are using (CFFT1D) falls into that area. We would suggest you to use the newer interfaces called Dfti interfaces. </P> <P>However, if you must use the deprecated interface for some backward compatibility reason, please provide us with the sequence of FFT calls you are making that reproduces the error. It may be a bug in our library.</P> <P>Also note that ifyou aretrying to port FFTW based code to MKL, there are some FFTW wrappers available with latestMKL 8.1 release that you can use to ease the migration process. Please look at<A href="http://www.intel.com/software/products/mkl/docs/fftw_mkl_user_notes_2.htm">http://www.intel.com/software/products/mkl/docs/fftw_mkl_user_notes_2.htm</A>on how to use the wrappers.</P> <P>-Regards </P> <P>Rezaur Rahman</P> Wed, 06 Sep 2006 06:20:36 GMT MdRezaur_R_Intel 2006-09-06T06:20:36Z https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/MKL-INTERNAL-ERROR-Condition-0-detected-in-function-CFFT1D/m-p/912906#M12294 <P><FONT face="Arial" size="2">This is a comment after readingRezaur Rahman'sIntel Software Network article entitled<A href="http://www.intel.com/cd/ids/developer/asmo-na/eng/223902.htm">The Intel Math Kernel Library and its Fast Fourier Transform Routine</A>.</FONT></P> <P><FONT face="Arial" size="2">While running FFT routines (CFFT1D) on a Xeon MP machine, I get a MKL INTERNAL ERROR : Condition 0 detected in function CFFT1D sometimes. The number of errors vary across runs for the same executable, which is not understood.</FONT> </P> <P></P> Tue, 29 Aug 2006 23:25:15 GMT https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/MKL-INTERNAL-ERROR-Condition-0-detected-in-function-CFFT1D/m-p/912906#M12294 postaquestion 2006-08-29T23:25:15Z https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/MKL-INTERNAL-ERROR-Condition-0-detected-in-function-CFFT1D/m-p/912907#M12295 <P>Hi,</P> <P>If you are trying to use the FFT directly from MKL, note that there are two sets of interfaces that MKL supports. One of them is deprecated and the interface you are using (CFFT1D) falls into that area. We would suggest you to use the newer interfaces called Dfti interfaces. </P> <P>However, if you must use the deprecated interface for some backward compatibility reason, please provide us with the sequence of FFT calls you are making that reproduces the error. It may be a bug in our library.</P> <P>Also note that ifyou aretrying to port FFTW based code to MKL, there are some FFTW wrappers available with latestMKL 8.1 release that you can use to ease the migration process. Please look at<A href="http://www.intel.com/software/products/mkl/docs/fftw_mkl_user_notes_2.htm">http://www.intel.com/software/products/mkl/docs/fftw_mkl_user_notes_2.htm</A>on how to use the wrappers.</P> <P>-Regards </P> <P>Rezaur Rahman</P> Wed, 06 Sep 2006 06:20:36 GMT https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/MKL-INTERNAL-ERROR-Condition-0-detected-in-function-CFFT1D/m-p/912907#M12295 MdRezaur_R_Intel 2006-09-06T06:20:36Z