double free or corruption (out)

[heal-research]

double free or corruption (out)

[pmendes]

tail is a good idea, I'll use that for now. BTW, operon is doing better than other options (ellyn with FE_AFP or turingbot) for my problem.

[foolnotion]

Hi, we've noticed this happening with certain combinations of CPUs and compilation flags. Could you share more details about the CPU architecture? It might help to specify flags explicitly during the build generation phase, for example:

cmake -S . -B build -DCMAKE_CXX_FLAGS="-march=x86-64 -mavx2 -mfma" -DCMAKE_BUILD_TYPE=Release -DBUILD_SHARED_LIBS=ON

Could you possibly make a debug build and attach the gdb backtrace? That would be helpful in figuring out this issue. Thanks!

[pmendes]

I built it like this:

cmake -S . -B build -DCMAKE_TOOLCHAIN_FILE=/usr/local/src/vcpkg-2022.06.16.1/scripts/buildsystems/vcpkg.cmake -DCMAKE_BUILD_TYPE=Release  -DBUILD_PYBIND=OFF -DUSE_OPENLIBM=ON -DUSE_SINGLE_PRECISION=ON -DUSE_CERES_NNLS=ON -DCMAKE_INSTALL_PREFIX=/usr -DVCPKG_OVERLAY_PORTS=./ports -DMETIS_INCLUDE_DIR=/usr/include/metis

I did not specify explicitly which malloc version, so it is using whichever is the default.
I was built and run on a Intel(R) Core(TM) i7-8550U CPU @ 1.80GHz .

I will see if I can do a debug build to provide you with the stack trace.

thanks

[pmendes]

When I run the same binary on a Intel(R) Xeon(R) W-1270 CPU @ 3.40GHz it behaves in the same way (it still produces the double free or corruption error)

[foolnotion]

The -DUSE_JEMALLOC part is not relevant, it just happened to be what I use on my system. But the explicit flags -DCMAKE_CXX_FLAGS="-march=x86-64 -mavx2 -mfma"might actually make the error go away (alternatively -march=skylake should also work for those processors). In any case I will investigate.

[pmendes]

The Debug build does not abort... and there is no trace to supply. So I will build with your suggested options now.

[pmendes]

compiling with -DCMAKE_CXX_FLAGS="-march=x86-64 -mavx2 -mfma" resolved the problem, no more double free error. Thanks for the help!

BTW, is there any way to silence the output but still get the best function at the end? I know I can redirect stdout and/or stderr but I was wondering if there is some option that can do the same?

[foolnotion]

currently, there is no way to do that without touching the source code, but you could use tail to get just the last line of output. it might be a good idea to add a command-line switch for that.