topic basic_dp_complex_dft_2d.c has memory leaks in Intel® oneAPI Math Kernel Library

basic_dp_complex_dft_2d.c has memory leaks

wujp1978 — Sat, 17 Sep 2011 10:55:12 GMT

First I created a MFC Dialog project, then add "basic_dp_complex_dft_2d.c" to this project, and change "int main(void)" to "int fft_mkl(void)", then call fft_mkl in the MFC App. When the program exited, memory leaks were detected.

Some details is like

The thread 'Win32 Thread' (0x1648) has exited with code 2 (0x2).

First-chance exception at 0x7c812afb in testmkl_MFC.exe: 0xA1A01DB2: 0xa1a01db2.

Detected memory leaks!

Dumping objects ->

{209} normal block at 0x003BEB18, 512 bytes long.

Data: < > CD CD CD CD CD CD CD CD CD CD CD CD CD CD CD CD

{208} normal block at 0x02883788, 104 bytes long.

Data: < ; > 18 EB 3B 00 00 00 00 00 00 00 00 00 00 00 00 00

Object dump complete.

The program '[3496] testmkl_MFC.exe: Native' has exited with code 2 (0x2).

When I added"basic_dp_complex_dft_2d.c" to a console program, and memory leaks were not found.

My MKL version is 10.3.6.

basic_dp_complex_dft_2d.c has memory leaks

mecej4 — Sat, 17 Sep 2011 11:51:30 GMT

It is possible that this is a false warning or that the memory leak is of a benign nature. I say this because I have seen similar false alarms from Valgrind and other memory leak detection programs, which often rely upon looking for certain code sequences to detect memory leaks. For example, one such memory leak checker "finds" memory leaks in any program that does Fortran I/O.

basic_dp_complex_dft_2d.c has memory leaks

Gennady_F_Intel — Sat, 17 Sep 2011 17:13:07 GMT

Please try to explicitly free the memory allocated by MKL memory managements by calling

mkl_free_buffersfunction at the end of your program.