Elmer Discussion Forum

Hi Rupert,
as the freesurf_maxd serial test runs through, I presume there is a problem with parallel set up. Could you send me output to see where it fails (is it the norm?)?

Damage test never worked for me and the Thickness problem is - as I reckon - being worked over.

Regards,

Thomas

Hi Liz, tangential forces can be applied with the keywords Pressure {1,2,3} for directional applied surface stresses (force/unit-area) or External Pressure for normal external pressure (I know, the naming is unfortunate, but this is something from old Elmer history). In your particular case I'd spli...

Dear Saisai, First of all, we have no clue what the units in the picture from Rignot are (cm/day, m/year?) we should compare your results to - if you used the attached SIF your Elmer/Ice velocities are m/year. Looking at your SIF you have a no-slip condition at the bedrock, which kind of contradicts...

Hello, the units (and hence the value) of the coefficient for the sliding law depends on the rest of you units. Elmer doesn't restrict you on that. If you use SI units (m-kg-seconds) then the unit for the friction coefficient (the beta^2 as decribed for instance in ISMIP-HOM experiments for linear s...

One more hint I got yesterday from a colleague for OSX: one frequent cause of troubles could be the Blas library provided by Apple. If I understood correctly, there might be a way to replace it by one from homebrew. Dunno if this helps

Thomas

Hi Michelle, we are working on a documented plan how to install on OSX. For your CentOS installation: you definitely want to have MUMPS and easily can forget about Hypre if you are doing glaciological problems. On RHEL I found a RPM package for MUMPS in the EPEL repository and this looks very promis...

Michelle, the ctest is meant for testing _before_ installation, hence falls back on the binaries inside your build-tree. Hence, all paths there are more or less hard-coded. If you change something after compiling (renaming, copying), this might cause problems. Else, I am lacking any explanation for ...

Hello, checking your logs, it seems to me that the ctests want to access directories that a) either do not exist b) are not set for permission CMake Error at /Users/johnchristian/Elmer/elmerice/elmerice/Tests/test_macros.cmake:70 (FILE): file failed to open for reading (No such file or directory): /...

Dear Martin, if your "normal" Stokes solver produced a solution, then - in principle - the ParStokes should do so, too. Could you please indicate which part of ParStokes refuses to converge: the outer (GCR) system or one of the block-preconditioning sub-problems? Do you have grounding-line...

Hi Michelle, this is a little bit tricky to analyze remotely, not only (but mainly) because of OSX. I think a good start would be, if you could send the log of the seg-faulted test (should be under Testing/Temporary in your build-directory) and perhaps give us hints how you configured your environme...