[Dune] [#712] gmsh reader crashes in parallel case when used in the ALUGridSimplex 3D grid factory

[Dune]

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A new Flyspray task has been opened.  Details are below. 

User who did this - Benedikt Oswald (oswald) 

Attached to Project - Dune
Summary - gmsh reader crashes in parallel case when used in the ALUGridSimplex 3D grid factory
Task Type - Bug Report
Category - Grid
Status - Unconfirmed
Assigned To - 
Operating System - Unspecified / All
Severity - Critical
Priority - Normal
Reported Version - SVN (pre2.0)
Due in Version - Undecided
Due Date - Undecided
Details - Dear Dune, when the gmsh reader is used in combination with the ALUGrid simplex grid factory in 3d
in parallel mode, the respective code crashes when I use the feature to insertBoundarySegments.

I discussed this with Robert Klöfkorn today and he suggested that the behavior may not yet be defined
in the parallel case. 

While I classified this task as a 'Bug Report' it might as well be called a 'Feature Request'. I just
write this from a pure user's perspective where reading gmsh files in parallel is of considerable
important, especially to also read the element and boundary id (segment) information.

We would appreciate very much if you can comment on this.

Thanks and greetings, Benedikt

=================================
pcp029897:test oswald$ mpirun -np 2 ./gmshreadertest
Reading 3d Gmsh grid...
version 2 Gmsh file detected
file contains 23908 nodes
Reading 3d Gmsh grid...
version 2 Gmsh file detected
file contains 23908 nodes
file contains 139304 elements
file contains 139304 elements
terminate called after throwing an instance of 'Dune::GridError'
[pcp029897:29148] *** Process received signal ***
[pcp029897:29148] Signal: Abort trap (6)
[pcp029897:29148] Signal code:  (0)
[pcp029897:29148] [ 0] 2   libSystem.B.dylib                   0x900702bb _sigtramp + 43
[pcp029897:29148] [ 1] 3   ???                                 0xffffffff 0x0 + 4294967295
[pcp029897:29148] [ 2] 4   libSystem.B.dylib                   0x900e423a raise + 26
[pcp029897:29148] [ 3] 5   libSystem.B.dylib                   0x900f0679 abort + 73
[pcp029897:29148] [ 4] 6   libstdc++.6.dylib                   0x93dd4005 _ZN9__gnu_cxx27__verbose_terminate_handlerEv + 445
[pcp029897:29148] [ 5] 7   libstdc++.6.dylib                   0x93dd210c __gxx_personality_v0 + 1108
[pcp029897:29148] [ 6] 8   libstdc++.6.dylib                   0x93dd214b _ZSt9terminatev + 29
[pcp029897:29148] [ 7] 9   libstdc++.6.dylib                   0x93dd2261 __cxa_throw + 101
[pcp029897:29148] [ 8] 10  gmshreadertest                      0x0003b4bf _ZN4Dune16ALU3dGridFactoryINS_14ALUSimplexGridEE12insertVertexERKNS_11FieldVectorIdLi3EEE + 303
[pcp029897:29148] [ 9] 11  gmshreadertest                      0x000c54d0 _ZN4Dune16GmshReaderParserINS_14ALUSimplexGridILi3ELi3EEELi3EE18pass1HandleElementEP7__sFILEiRSt3mapIijSt4lessIiESaISt4pairIKijEEERKSt6vectorINS_11FieldVectorIdLi3EEESaISH_EE + 976
[pcp029897:29148] [10] 12  gmshreadertest                      0x000c65f1 _ZN4Dune20GmshReaderParserBaseINS_14ALUSimplexGridILi3ELi3EEENS_16GmshReaderParserIS2_Li3EEEE4readERKSs + 3585
[pcp029897:29148] [11] 13  gmshreadertest                      0x00005064 main + 1796
[pcp029897:29148] [12] 14  gmshreadertest                      0x00002776 start + 54
[pcp029897:29148] *** End of error message ***
number of real vertices = 23908
number of boundary elements = 5216
number of elements = 134088
--------------------------------------------------------------------------
mpirun noticed that process rank 1 with PID 29148 on node pcp029897.psi.ch exited on signal 6 (Abort trap).
--------------------------------------------------------------------------

======================================

The code used is:

	std::vector<int> boundaryId2physicalEntity;
	boundaryId2physicalEntity.clear();

	std::vector<int> elementIndex2PhysicalEntity;
	elementIndex2PhysicalEntity.clear();

	Dune::GmshReader< ALUSimplexGridType >::read<int>(factory,
														GMSH_FILE_NAME,
														boundaryId2physicalEntity,
														elementIndex2PhysicalEntity,
														true,
														true);





More information can be found at the following URL:
http://www.dune-project.org/flyspray/index.php?do=details&task_id=712

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