Crash on export with OSX

[sjcrs]

Hi,
I have installed Cubit 2021.5 on my Macbook (running 11.4 Big Sur) and have installed the corresponding Cubit plugin for macOS and cubit 2021.5. With a simple STEP file imported, I'm following the directions here (https://svalinn.github.io/DAGMC/usersguide/cubit_workflow.html). When I run the export dagmc command, Cubit crashes and returns a lengthy problem report. The head of this shows:

Crashed Thread: 0 Dispatch queue: com.apple.main-thread

Exception Type: EXC_CRASH (SIGABRT)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Exception Note: EXC_CORPSE_NOTIFY

Application Specific Information:
Assertion failed: (0), function serial_create_file, file /Users/runner/work/Cubit-plugin/moab/moab/src/io/WriteHDF5.cpp, line 2497.

I can reproduce the problem and show a lengthier chunk of the report if necessary. I'm hoping someone can help me get past this error.

Thanks!

[pshriwise]

Sorry to hear this is crashing @sjcrs!

It looks to me like this is coming from the following assertion in MOAB that has to do with the length of tag data
https://bitbucket.org/fathomteam/moab/src/f641aadf7c6d240be3e6140c458bfdfb912bb3a1/src/io/WriteHDF5.cpp#lines-2942

Out of curiosity, can you successfully export a single volume like a sphere or box?

[sjcrs]

I created a single cube in CAD, exported to STEP, imported into Cubit, and saw the same behavior on exporting to dagmc.

[makeclean]

Could you attach a cubit journal file, or an acis file fully marked up that we can take a look at?

[sjcrs]

Hi all,
I'm starting from a STEP file and issuing the following commands

import step "/TIARA_CAD.step" heal
imprint body all
merge tol 5e-7
merge all
group "mat:Iron" equals 1 3 5
group "mat:Aluminum" equals 7 to 11
group "mat:Concrete" equals 6
group "mat:Scintillator" equals 12
group "mat:Vacuum" equals 2
group "mat:Iron" add 4
group "mat:Aluminum" add 13

dagmc export "tiara.h5m"

At this point it crashes.

Andy, I can email you the STEP file and/or a .cub5 file, if that's alright. I don't have a place to stash it on the web in order to produce a link.