(mri) pxp@DESKTOP-ON7OQLP:/mnt/k/DTI_FBA/group$ fixelconnectivity fixel_mask/ tracks_2_million_sift.tck matrix/
fixelconnectivity: [100%] preloading data for “fixel_mask/directions.mif”
fixelconnectivity: [ 98%] computing fixel-fixel connectivity matrix…
fixelconnectivity: [SYSTEM FATAL CODE: SIGSEGV (11)] Segmentation fault: Invalid memory access
Hi @yu_cheng,
Sorry if this is a bit too late to be useful…
My best guess here is that you are running out of memory – fixelconnectivity is can be very memory-intensive, depending on your input data. It’s not uncommon for it to require more than 32GB of RAM (in fact, early implementations required more than 128GB…).
You can check how much RAM is available on your system using the command:
$ free -h
You can also keep track of current memory consumption using standard monitoring tools provided by your operating system (e.g. Task Manager on Windows, Activity Monitor on macOS, System Monitor on Linux), or other command-line tools like htop if available on your system. If you see the memory usage steadily rising up to the max before crashing, that would be consistent with running out of memory…
All the best,
Donald.
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Thank you ,teacher