Segfault in writing out XML with master
Issue #361
resolved
from dolfin import *
mesh = UnitSquareMesh(100, 100)
V = VectorFunctionSpace(mesh, "CG", 2)
P = FunctionSpace(mesh, "CG", 1)
Z = MixedFunctionSpace([V, P])
z = Function(Z)
File("example.xml") << z
segfaults on two processors with master:
[pef@aislinn:/tmp]$ python dump.py
[pef@aislinn:/tmp]$ mpiexec -n 2 python dump.py
Number of global vertices: 10201
Number of global cells: 20000
--------------------------------------------------------------------------
mpiexec noticed that process rank 0 with PID 22901 on node aislinn exited on signal 11 (Segmentation fault).
--------------------------------------------------------------------------
Something to do with the recent dofmap changes? A backtrace:
Program received signal SIGSEGV, Segmentation fault.
0x00007fffdf2ad93a in dolfin::XMLFunctionData::write (u=..., xml_node=...)
at /home/pef/local/fenics-dbg-20140817/src/dolfin/dolfin/io/XMLFunctionData.cpp:190
190 = (unsigned int) global_dof_to_cell_dof[i][0].first;
(gdb) bt
#0 0x00007fffdf2ad93a in dolfin::XMLFunctionData::write (u=..., xml_node=...)
at /home/pef/local/fenics-dbg-20140817/src/dolfin/dolfin/io/XMLFunctionData.cpp:190
#1 0x00007fffdf27db1d in dolfin::XMLFile::operator<< (this=0x31c0560,
output=...)
at /home/pef/local/fenics-dbg-20140817/src/dolfin/dolfin/io/XMLFile.cpp:240
#2 0x00007fffb67913a9 in dolfin::File::operator<< <dolfin::Function> (
this=0x31bc170, t=...)
at /home/pef/local/fenics-dbg-20140817/src/dolfin/dolfin/io/File.h:234
#3 0x00007fffb676e41f in _wrap_File___lshift____SWIG_20 (nobjs=2,
swig_obj=0x7fffffffcf70)
at /home/pef/local/fenics-dbg-20140817/src/dolfin/build.master/dolfin/swig/modules/io/modulePYTHON_wrap.cxx:21665
Comments (4)
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reporter It works with XDMF, yes. (I find the Function(V, filename) interface very convenient and tend to use XML when performance isn't critical.)
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I have fixed this issue in pull request #169.
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- changed status to resolved
Fixed in 04e0f27
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Does it work with hdf5?