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Hi,

What is the box size of your reference and how much (CPU) memory
do you have?

Please try down-sampling your 3D reference to 8 or 10 A / pix.
Don't forget to specify the reference pixel size.

Best regards,

Takanori Nakane

On 2019/01/04 5:10, Yu Xinchao wrote:
> 1. I tried 4 mpi with GPU 0:1:2:3 and got same error.
> 2. The references are generated from the data and I used 6
> Xinchao
> 
> On Jan 3, 2019, at 6:52 PM, Joshua Lobo <[log in to unmask]<mailto:[log in to unmask]>> wrote:
> 
> Hi Xinchao
> 
> 1.Have you tried 4 MPI by specifically designting the gpus like -gpu '0:1:2:3'.
> 
> 2.how many autopick references are you picking with and are they generated from the data?
> 
> Sincerely
> Joshua
> 
> On Fri, 4 Jan 2019, 03:46 Yu Xinchao <[log in to unmask]<mailto:[log in to unmask]> wrote:
> I tried that option, got the same message
> 
> Sent from my iPhone
> 
> On Jan 3, 2019, at 1:54 PM, Dong-Hua Chen <[log in to unmask]<mailto:[log in to unmask]>> wrote:
> 
> Xinchao,
> 
> I usually use the following option for autopick:
> 
> --shrink 0
> 
> 
> Thanks,
> Dong-Hua
> 
> On Thu, Jan 3, 2019, 11:53 Xinchao Yu <[log in to unmask]<mailto:[log in to unmask]> wrote:
> Hi Joshua:
>      I used the following command and asked for 8 mpi processes (we have 4x K80):
>     `which relion_autopick_mpi` --i CtfFind/job002/micrographs_ctf.star --odir AutoPick/job006/ --pickname autopick --ref ../../Talos_UMass/auto_temp.mrcs --invert  --ctf  --ang 5 --shrink 1 --lowpass 20 --threshold 0.8 --min_distance 150 --max_stddev_noise 1.1 --gpu ""
> echo CtfFind/job002/micrographs_ctf.star > AutoPick/job006/coords_suffix_autopick.star
> Thanks,
> Xinchao
> 
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