lihao@h213 ParMmg % mpirun -np 1 /Users/lihao/TestPMMG/ParMmg/build/bin/parmmg ./sphere.mesh -sol ./sphere.sol -out sphere-out.mesh -mesh-size 200000 -niter 6 -nlayers 3 -hgradreq 3.0
  -- PARMMG, Release 1.0.0 (2016) 
     Copyright (c) Bx INP/INRIA, 2016-
     Jan 14 2020 23:53:46

  -- MMG3D,    Release 5.4.2 (Mar. 20, 2019) 
     Copyright (c) Bdx INP/CNRS/Inria/UPMC, 2004-
=== 0/1 === DEFAULT - par: 0x0 NULL
=== 0/1 === MMGARGV: /Users/lihao/TestPMMG/ParMmg/build/bin/parmmg
=== 0/1 === MMGARGV: ./sphere.mesh
=== 0/1 === MMGARGV: -sol
=== 0/1 === MMGARGV: ./sphere.sol
=== 0/1 === MMGARGV: -out
=== 0/1 === MMGARGV: sphere-out.mesh
=== 0/1 === MMGARGV: -hgradreq
=== 0/1 === MMGARGV: 3.0

  -- INPUT DATA: LOADING MESH ON RANK 0
=== 0/1 === PARSE - grp: 0x0 NULL
=== 0/1 === PARSE - par: 0x0 NULL
AddressSanitizer:DEADLYSIGNAL
=================================================================
==920==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000000 (pc 0x7fff6efad732 bp 0x7ffee2931560 sp 0x7ffee2931560 T0)
==920==The signal is caused by a READ memory access.
==920==Hint: address points to the zero page.
    #0 0x7fff6efad731 in _platform_strlen (libsystem_platform.dylib:x86_64+0x1731)
    #1 0x10d91a5f7 in wrap_strrchr (libclang_rt.asan_osx_dynamic.dylib:x86_64h+0x1b5f7)
    #2 0x10d456582 in MMG5_Get_filenameExt mmg.c:318
    #3 0x10d2cfdc0 in main parmmg.c:162
    #4 0x7fff6edaf2e4 in start (libdyld.dylib:x86_64+0x112e4)

==920==Register values:
rax = 0x000000010e5af6d8  rbx = 0x0000000000000000  rcx = 0x0000000000000000  rdx = 0x0000000000000000  
rdi = 0x0000000000000000  rsi = 0x000000000000002e  rbp = 0x00007ffee2931560  rsp = 0x00007ffee2931560  
 r8 = 0x00000000000130a8   r9 = 0x0000000000000000  r10 = 0x00007fff98de8578  r11 = 0x00007fff98de8570  
r12 = 0x000000010e5af688  r13 = 0x0000100000000000  r14 = 0x000000000000002e  r15 = 0x0000000000000000  
AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV (libsystem_platform.dylib:x86_64+0x1731) in _platform_strlen
==920==ABORTING
[h213:00920] *** Process received signal ***
[h213:00920] Signal: Abort trap: 6 (6)
[h213:00920] Signal code:  (0)
[h213:00920] *** End of error message ***
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Primary job  terminated normally, but 1 process returned
a non-zero exit code. Per user-direction, the job has been aborted.
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mpirun noticed that process rank 0 with PID 0 on node h213 exited on signal 6 (Abort trap: 6).
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