Preprocessing Failed on Mac

27" 2017 imac 24gb RAM 462GB free disk space

I have used Siril with an external drive and my laptop . Now I am trying on my more powerful desktop. But, the pre=processing fails because of insufficient disk space. I have given Siril full disk access and I have 462 GB of space on my hard drive.

Thanks

On macOs there is a particular status for memory. I don’t remember the name but you need to free it.

Cleanup your purgeable memory

I followed the directions to purge my drive. Now SiriL shows less available memory. Before I purge it, I had 26GB, now it says that I have 18GB of disk space, but I actually have 482.

I ran the pre-processing script after purging my data, it generated a new error:

05:50:49: Reading RAW: file DSC00831.ARW, 1 layer(s), 6024x4024 pixels
05:50:49: FITS error: Error writing data buffer to file:
05:50:49: FITS error: …/process/flat_00005.fit
05:50:49: FITS error: Error writing data buffer to file:
05:50:49: FITS error: …/process/flat_00008.fit
05:50:49: FITS error: Error writing data buffer to file:
05:50:49: FITS error: …/process/flat_00006.fit
05:50:49: FITS error: Error writing data buffer to file:
05:50:49: FITS error: …/process/flat_00006.fit
05:50:49: FITS error: Error writing elements 1 thru 14400 of input data array (ffpclui).
05:50:50: FITS error: Error writing data buffer to file:
05:50:50: FITS error: …/process/flat_00007.fit
05:50:50: FITS error: Error writing data buffer to file:
05:50:50: FITS error: …/process/flat_00006.fit
05:50:50: FITS error: Error writing data buffer to file:
05:50:50: FITS error: …/process/flat_00007.fit
05:50:50: FITS error: Error writing elements 1 thru 14400 of input data array (ffpclui).
05:50:51: Decoding Sony ILCE-7M2 file (ISO=3200, Exposure=1/400.0 sec)
05:50:51: Filter pattern: RGGB
05:50:51: Reading RAW: file DSC00833.ARW, 1 layer(s), 6024x4024 pixels
05:50:51: FITS error: Error writing data buffer to file:
05:50:51: FITS error: …/process/flat_00007.fit
05:50:51: FITS error: Error writing data buffer to file:
05:50:51: FITS error: …/process/flat_00009.fit
05:50:51: FITS error: Error writing elements 1 thru 14400 of input data array (ffpclui).
05:50:51: Conversion succeeded, 9 file(s) created for 9 input file(s) (9 image(s) converted, 0 failed)
05:50:51: Running command: cd
05:50:51: Setting CWD (Current Working Directory) to ‘/Users/frank/Documents/Siril Files/Andromeda Galaxy/process’
05:50:51: # Pre-process Flat Frames
05:50:51: Running command: preprocess
05:50:51: The sequence file flat_.seq seems to be corrupted
05:50:51: Could not load sequence flat_.seq
05:50:51: Loading sequence `flat’ failed.
05:50:51: Error in line 38: ‘preprocess’.
05:50:51: Exiting batch processing.
05:50:51: Setting CWD (Current Working Directory) to ‘/Users/frank/Documents/Siril Files/Andromeda Galaxy’
05:50:51: Script execution failed.

In your working directory you only have 18GiB apparently.
The disk space is computed only for working directory.

For some reason SiriL now sees 270.6 GiB available. Any tips on keeping the working directory free (of getting SiriL to see that it is free or getting my Mac to keep it free)? I am confused. Thank you for you help!

I ran the script again. It got further but it still failed. Here is the log. It says it doesn’t have enough memory but Siril still shows over 250GiB available. Thank!!!

7:51:28: Filter Pattern: RGGB
07:51:28: Reading FITS: file light_00219.fit, 1 layer(s), 6024x4024 pixels
07:51:28: Filter Pattern: RGGB
07:51:31: Saving FITS: file pp_light_00217.fit, 3 layer(s), 6024x4024 pixels
07:51:32: Reading FITS: file light_00220.fit, 1 layer(s), 6024x4024 pixels
07:51:32: Filter Pattern: RGGB
07:51:33: Saving FITS: file pp_light_00216.fit, 3 layer(s), 6024x4024 pixels
07:51:34: Reading FITS: file light_00221.fit, 1 layer(s), 6024x4024 pixels
07:51:34: Filter Pattern: RGGB
07:51:36: Saving FITS: file pp_light_00218.fit, 3 layer(s), 6024x4024 pixels
07:51:37: Reading FITS: file light_00222.fit, 1 layer(s), 6024x4024 pixels
07:51:37: Saving FITS: file pp_light_00219.fit, 3 layer(s), 6024x4024 pixels
07:51:37: Filter Pattern: RGGB
07:51:38: Reading FITS: file light_00223.fit, 1 layer(s), 6024x4024 pixels
07:51:38: Filter Pattern: RGGB
07:51:41: Saving FITS: file pp_light_00220.fit, 3 layer(s), 6024x4024 pixels
07:51:41: Reading FITS: file light_00224.fit, 1 layer(s), 6024x4024 pixels
07:51:42: Filter Pattern: RGGB
07:51:43: Saving FITS: file pp_light_00221.fit, 3 layer(s), 6024x4024 pixels
07:51:43: Reading FITS: file light_00225.fit, 1 layer(s), 6024x4024 pixels
07:51:44: Filter Pattern: RGGB
07:51:46: Saving FITS: file pp_light_00222.fit, 3 layer(s), 6024x4024 pixels
07:51:48: Saving FITS: file pp_light_00223.fit, 3 layer(s), 6024x4024 pixels
07:51:49: Saving FITS: file pp_light_00224.fit, 3 layer(s), 6024x4024 pixels
07:51:50: Saving FITS: file pp_light_00225.fit, 3 layer(s), 6024x4024 pixels
07:51:50: Sequence processing succeeded.
07:51:50: Execution time: 6 min 20 s.
07:51:50: # Align lights
07:51:50: Running command: register
07:51:58: Registration: processing using method: Global Star Alignment (deep-sky)
07:51:58: Not enough memory to do this operation (0 bytes required per image, 0 bytes considered available)
07:51:58: Setting CWD (Current Working Directory) to ‘/Users/frank/Documents/Siril Files/Andromeda Galaxy’
07:51:58: Script execution failed.

In Siril preference let the default memory management.
Ratio 0.9