topic Re:vslCopyStreamState fails in Intel® oneAPI Math Kernel Library

vslCopyStreamState fails

Guillaume_A_ — Tue, 06 May 2025 14:30:19 GMT

Hello,

Since I upgraded MKL from 2024.0.0 to 2025.1.0 I observe crashes around the vslCopyStreamState method.

This simple program will fail on Linux OS:

#include <iostream> #include <mkl_vsl.h> int main() { unsigned int scrambledSobolMaxBit = 32; unsigned int dimension = 399; int z = 0; for (; z < 100; z++) { std::cout <<"z:" << z <<"\n"; unsigned int nbParameters = 3 + scrambledSobolMaxBit * dimension; unsigned int* parameters = new unsigned int[nbParameters]; int k = 0; parameters[k++] = dimension; parameters[k++] = VSL_USER_QRNG_INITIAL_VALUES; parameters[k++] = VSL_USER_DIRECTION_NUMBERS; for (; k < nbParameters; k++) { parameters[k] = 0; } VSLStreamStatePtr rngState; if (vslNewStreamEx(&rngState, VSL_BRNG_SOBOL, nbParameters, parameters) != VSL_STATUS_OK) { std::cout <<"fail to vslNewStreamEx rngState" <<"\n"; return 1; } VSLStreamStatePtr tempState; if (vslNewStreamEx(&tempState, VSL_BRNG_SOBOL, nbParameters, parameters) != VSL_STATUS_OK) { std::cout <<"fail to vslNewStreamEx tempState" <<"\n"; return 1; } delete[] parameters; std::cout <<"\t0\n"; if (vslCopyStreamState(tempState, rngState) != VSL_STATUS_OK) { std::cout << "\t0\t"<< "\tfail to copy streamState" <<"\n"; return 1; } // no prb if use below commented code /* if (vslDeleteStream(&tempState) != VSL_STATUS_OK) { std::cout << "\t0\t"<< "\tfail to vslDeleteStream" <<"\n"; return 1; } if (vslCopyStream(&tempState, rngState) != VSL_STATUS_OK) { std::cout << "\t0\t"<< "\tfail to vslCopyStream" <<"\n"; return 1; } */ std::cout << "\t1\n"; vslDeleteStream(&rngState); vslDeleteStream(&tempState); } return 0; }

The program crashs during the first vslCopyStreamState and show the msg:

free(): invalid pointer Aborted (core dumped)

Useful infos:

Compilation options:
-DISOLATION_AWARE_ENABLED -std=gnu++17 -m64 -mavx -axCORE-AVX2,CORE-AVX512 -fthreadsafe-statics -fexceptions -frtti -fomit-frame-pointer -fno-strict-aliasing -O0 -g2 -gdwarf-2 -fPIE -MD -MT

Link options:
-pie -m64 -static-libgcc -static-libstdc++ -static-intel -Wl,--start-group libmkl_intel_lp64.a libmkl_sequential.a libmkl_core.a -Wl,--end-group -lpthread -ldl

Cpuinfo:
vendor_id : AuthenticAMD
model name : AMD EPYC-Rome Processor

OS:
Red Hat Enterprise Linux release 9.5

Env:
gcc == 13.1.0
gxx == 13.1.0
dpcpp_linux-64 == 2025.0.4
mkl-static == 2025.1.0

Fun facts:

the program works fine with dimension <= 398.
the program works fine if comment the first std::cout (line 12).
the program works fine with the similar method vslCopyStream
the program works fine with MKL 2024.0.0
the same code crashs randomly on Windows 11 with an Intel(R) Xeon(R) W-11955M...

Regards,

Guillaume A.

Re:vslCopyStreamState fails

Aleksandra_K — Tue, 13 May 2025 12:16:48 GMT

Hi Guillaume,

Could you specify how you are running the code? I tried icpx with the compilation and link options which you mentioned and got correct results.

Regards,

Alex

Re: Re:vslCopyStreamState fails

Guillaume_A_ — Tue, 13 May 2025 12:44:05 GMT

Hi,

Thanks for your answer.

I am running it the most simple way, in the console: ./myprogram.out on Linux, myprogram.exe on Windows.

Did you run it on Windows or Linux OS? With an AMD or Intel CPU?

Regards,

Guillaume A.

Re:vslCopyStreamState fails

Aleksandra_K — Tue, 13 May 2025 12:59:30 GMT

Sorry for making the confusion, by 'running' I meant mainly compiling. I used Linux.

Re: Re:vslCopyStreamState fails

Guillaume_A_ — Tue, 13 May 2025 14:10:01 GMT

Oh ok, my whole compilation/link commands:

/Console # /root/bin/mf-current/bin/icpx -DISOLATION_AWARE_ENABLED -I/root/bin/mf-current/x86_64-conda-linux-gnu/include/c++/13.1.0 -I/root/bin/mf-current/x86_64-conda-linux-gnu/include/c++/13.1.0/x86_64-conda-linux-gnu -I/root/bin/mf-current/x86_64-conda-linux-gnu/sysroot/usr/include -I/root/bin/mf-current/include -std=gnu++17 -m64 -mavx -O0 -g2 -gdwarf-2 -fPIE -o myprogram.cpp.o -c myprogram.cpp
/Console # /root/bin/mf-current/bin/icpx -pie -m64 --sysroot=/root/bin/mf-current/x86_64-conda-linux-gnu/sysroot -static-libgcc -static-libstdc++ -static-intel myprogram.cpp.o -o myprogram.out -Wl,--start-group /root/bin/mf-current/lib/libmkl_intel_lp64.a /root/bin/mf-current/lib/libmkl_sequential.a /root/bin/mf-current/lib/libmkl_core.a -Wl,--end-group -lpthread -ldl

Note that I removed some option to keep it simple, but I still reproduce the crash.

gcc, g++, mkl and dpcpp have been installed with conda (miniforge).

Re:vslCopyStreamState fails

Aleksandra_K — Mon, 19 May 2025 17:04:45 GMT

Hi, I eventually reproduced the issue and we will work on it internally. I'll post here with any news.

Re: Re:vslCopyStreamState fails

Guillaume_A_ — Wed, 18 Jun 2025 08:47:30 GMT

Hello, any news on this?

Guillaume A.

Re:vslCopyStreamState fails

Aleksandra_K — Wed, 18 Jun 2025 09:22:11 GMT

Hi,

I confirmed that work on this issue is in progress. I'll post here once there are updates.

Regards,

Alex

Re: vslCopyStreamState fails

Guillaume_A_ — Mon, 01 Sep 2025 12:37:55 GMT

Hello, any news on this?

Guillaume A.

Re:vslCopyStreamState fails

Aleksandra_K — Tue, 02 Sep 2025 11:24:25 GMT

The bug has been fixed and the fix will be included in the new oneMKL release.

Regards,

Alex

Re:vslCopyStreamState fails

Aleksandra_K — Wed, 05 Nov 2025 15:56:33 GMT

The bug fix is included in the new release.

Regards,

Alex

Re: vslCopyStreamState fails

Guillaume_A_ — Thu, 06 Nov 2025 10:10:56 GMT

Indeed, the problem is fixed with MKL 2025.3.0.

Thanks,

Guillaume A.