https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/How-to-generate-a-fatal-exception-to-test-mkl-set-exit-handler/m-p/1080778#M22796 Hi Dmitry, thanks for your reply. I can create fatal errors when the dynamic libraries are not available. However, I'm using a custom shared library (https://software.intel.com/en-us/node/528533) which groups all the dynamic libraries in a single file. I'm also using one specific processor, so the library will always match the processor. Does this mean that I can never get this kind of fatal error, which are handled by the function registered with mkl_set_exit_handler(...)? Or are there other ways to trigger the function set by mkl_set_exit_handler(...)? Second question, is there a way to catch the printed error message like "Intel MKL FATAL ERROR: Cannot load libmkl_avx2.so or libmkl_def.so."? Tue, 12 Apr 2016 14:50:47 GMT Gert-Jan 2016-04-12T14:50:47Z https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/How-to-generate-a-fatal-exception-to-test-mkl-set-exit-handler/m-p/1080776#M22794 I would like to test my custom handler of fatal errors, but I can't figure out to generate a fatal error :( I use mkl_set_exit_handler(...) to register my custom handler, but I don't know how to test this. I 'm using the C interface, see <A href="https://software.intel.com/en-us/node/522125" target="_blank">https://software.intel.com/en-us/node/522125</A>. Any suggestions are welcome. Generating segmentation faults by out-of-memory-bounds memory accesses (not allocating enough memory) does not seem to trigger the custom handler. Fri, 08 Apr 2016 14:52:10 GMT https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/How-to-generate-a-fatal-exception-to-test-mkl-set-exit-handler/m-p/1080776#M22794 Gert-Jan 2016-04-08T14:52:10Z https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/How-to-generate-a-fatal-exception-to-test-mkl-set-exit-handler/m-p/1080777#M22795 <P>Hi Gert-Jan,</P> <P>MKL Reference Manual describes what a fatal error may be. "For example, a fatal error occurs when Intel MKL cannot load a dynamic library...". If you link your application dynamically with MKL and run it with dynamic libraries inaccessible you will get a call to exit handler.</P> <P>&nbsp;</P> <P>&nbsp;</P> Mon, 11 Apr 2016 03:38:39 GMT https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/How-to-generate-a-fatal-exception-to-test-mkl-set-exit-handler/m-p/1080777#M22795 Dmitry_B_Intel 2016-04-11T03:38:39Z https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/How-to-generate-a-fatal-exception-to-test-mkl-set-exit-handler/m-p/1080778#M22796 Hi Dmitry, thanks for your reply. I can create fatal errors when the dynamic libraries are not available. However, I'm using a custom shared library (https://software.intel.com/en-us/node/528533) which groups all the dynamic libraries in a single file. I'm also using one specific processor, so the library will always match the processor. Does this mean that I can never get this kind of fatal error, which are handled by the function registered with mkl_set_exit_handler(...)? Or are there other ways to trigger the function set by mkl_set_exit_handler(...)? Second question, is there a way to catch the printed error message like "Intel MKL FATAL ERROR: Cannot load libmkl_avx2.so or libmkl_def.so."? Tue, 12 Apr 2016 14:50:47 GMT https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/How-to-generate-a-fatal-exception-to-test-mkl-set-exit-handler/m-p/1080778#M22796 Gert-Jan 2016-04-12T14:50:47Z