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Hi Evgueni

That's pretty weird. It doesn't happen on your Windows version? Maybe you can check how much memory that uses while this is happening. (Could do the same on the VM).

By the way, I wonder if
               return re + 1j*im
doesn't temporarily double memory requirements.

kris
From: [log in to unmask] [mailto:[log in to unmask]]
Sent: 21 July 2017 13:35
To: Thielemans, Kris <[log in to unmask]>; Thomas, Ben <[log in to unmask]>; [log in to unmask]; [log in to unmask]
Cc: Atkinson, David <[log in to unmask]>
Subject: RE: out of memory on VM

I have increased VM memory to 8G, but still get memory error:

readouts: total 30720, image data 30720
first readout is image data
Flags [  0 128  64   0]
Ky/PE - encoding [254 255   0   1]
Slices [0 0 1 1]
Repetitions [0 0 0 0]
Traceback (most recent call last):
  File "using_acquisition_data.py", line 174, in <module>
    main()
  File "using_acquisition_data.py", line 117, in main
    acq_array = acq_data.as_array()
  File "/home/sirfuser/devel/build/install/python/pGadgetron.py", line 765, in as_array
    return re + 1j*im
MemoryError

Data size is 600M, so it is operating system thing, I believe.

Could it be that we have 32-bit Ubuntu on VM?