[3dem] Relion 3D auto-refine on a single machine

[Takanori Nakane]

Hi,

 > on a single machine (=without MPI)

This is not "=".
You can and must use MPI even on a single machine.

Use at least 3 MPI processes for Refine3D.

Best regards,

Takanori Nakane

On 2022/01/11 1:09, dariobrack at googlemail.com wrote:
> Hi all,
> 
> I receive following error when I try to do a 3D Refinment on a single workstation:
> 
>> ERROR:
>> ERROR: Cannot split data into random halves without using MPI! For debugging ONLY, use --debug_split_random_half 1 (or 2)
> 
> Is there a way to run 3D auto-refine on a single machine (=without MPI)?
> 
> Thanks in advance
> 
> Best
> 
> Dario
> 
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