On 6/16/10 2:19 AM, Douglas Arnold wrote: > The follow code, which does an LU factorization using the uBLAS > backend, runs fine for me under Ubuntu, but produces an > error (shown) under Fedora 11. I am guessing this > has to do with dorsal and the Fedora 11 install (I installed > from dorsal 0.7.1). Any ideas? (Or should I mail another list?)
I just checked, and for both Fedora and Ubuntu, Dorsal just relies on system packages for UMFpack libraries. Perhaps Fedora builds the library slightly differently. I will try to find a Fedora box to reproduce the error. Does anyone else have one handy? Harish > from dolfin import * > parameters["linear_algebra_backend"] = "uBLAS" > mesh = UnitSquare(2,2) > V = FunctionSpace(mesh, 'CG', 1) > v = TestFunction(V) > u = TrialFunction(V) > a = u*v*dx > A = assemble(a) > lusolver = LUSolver() > lusolver.factorize(A) > > > > : viper 1003; python solve1.py > Warning: Converting real-valued parameter to double, might loose precision. > Warning: Converting real-valued parameter to double, might loose precision. > Matrix of size 9 x 9 has 41 nonzero entries. > Sorting sparsity pattern. > LU-factorizing linear system of size 9 x 9 (UMFPACK). > UMFPACK problem related to call to symbolic > *** Warning: UMFPACK is reporting an unknown error. > UMFPACK problem related to call to numeric > [viper:03057] *** Process received signal *** > [viper:03057] Signal: Segmentation fault (11) > [viper:03057] Signal code: Address not mapped (1) > [viper:03057] Failing at address: 0x40 > [viper:03057] [ 0] [0x6be40c] > [viper:03057] [ 1] /lib/libgcc_s.so.1(_Unwind_RaiseException+0x85) > [0xc67ef5] > [viper:03057] [ 2] /usr/lib/libstdc++.so.6(__cxa_throw+0x64) [0x12774f4] > [viper:03057] [ 3] > /usr/local/bin/FEniCS/lib/libdolfin.so.0(_ZNK6dolfin6Logger5errorESs+0x98) > [0x26fda68] > [viper:03057] [ 4] > /usr/local/bin/FEniCS/lib/libdolfin.so.0(_ZN6dolfin5errorESsz+0x95) > [0x2700ce5] > [viper:03057] [ 5] > /usr/local/bin/FEniCS/lib/libdolfin.so.0(_ZNK6dolfin15UmfpackLUSolver7Umfpack12check_statusElSs+0x144) > [0x26f2984] > [viper:03057] [ 6] > /usr/local/bin/FEniCS/lib/libdolfin.so.0(_ZN6dolfin15UmfpackLUSolver7Umfpack9factorizeEv+0x127) > [0x26f2e17] > [viper:03057] [ 7] [0x40] > [viper:03057] *** End of error message *** > Segmentation fault > > > _______________________________________________ > Mailing list: https://launchpad.net/~dorsal > Post to : [email protected] > Unsubscribe : https://launchpad.net/~dorsal > More help : https://help.launchpad.net/ListHelp _______________________________________________ Mailing list: https://launchpad.net/~dorsal Post to : [email protected] Unsubscribe : https://launchpad.net/~dorsal More help : https://help.launchpad.net/ListHelp
