MP: Error #13: Assertion failure at kmp_csupport.cpp(710).
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Thread 22 "openmp_worker" received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7fffb9ada880 (LWP 262991)]
0x00007fffecc1f122 in __kmp_tid_from_gtid (gtid=3) at ../../src/kmp.h:3824
3824 ../../src/kmp.h: No such file or directory.
(gdb) bt
#0 0x00007fffecc1f122 in __kmp_tid_from_gtid (gtid=3) at ../../src/kmp.h:3824
#1 __kmp_invoke_task_func (gtid=3) at ../../src/kmp_runtime.cpp:8368
#2 0x0000555556c912ee in __kmp_launch_thread ()
#3 0x0000555556cd6d81 in __kmp_launch_worker(void*) ()
#4 0x00007ffff78a4609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#5 0x00007ffff5c2d353 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
Running on Ubuntu 20.04, built SuiteSparse using the MKL library, we are using Cholmod linked to Mkl Lapack/BLAS via mkl_intel_lp64 and mkl_intel_thread.
Do you maybe have suggestions how to debug this to find the problem?
Running the same code on ubuntu 25.10 using the same Mkl does not give this problems. ( Not exactly the same SuiteSparse, but I can try that)
