Re: ADPilatus with PPU

[Mark Rivers via Tech-talk <tech-talk@aps.anl.gov>]

Hi John,

ADPilatus is reading the files from /ramdisk on the PPU.  Each time a file appears it reads it, increments ArrayCounter_RBV, and calls any plugins. 

Perhaps I am not understanding your question?

Mark

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From: John Dobbins <john.dobbins@cornell.edu>
Sent: Wednesday, September 11, 2024 8:25 AM
To: Mark Rivers <rivers@cars.uchicago.edu>; tech-talk@aps.anl.gov <tech-talk@aps.anl.gov>
Subject: Re: ADPilatus with PPU

 

The file location is /ramdisk.  John

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From: Mark Rivers <rivers@cars.uchicago.edu>
Sent: Wednesday, September 11, 2024 9:22 AM
To: tech-talk@aps.anl.gov <tech-talk@aps.anl.gov>; John Dobbins <john.dobbins@cornell.edu>
Subject: Re: ADPilatus with PPU

 

Hi John,

Where have you told ADPilatus to look for the files?  Can you send a screenshot of the ADPilatus screen during a collection?

Mark

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From: Tech-talk <tech-talk-bounces@aps.anl.gov> on behalf of John Dobbins via Tech-talk <tech-talk@aps.anl.gov>
Sent: Wednesday, September 11, 2024 8:09 AM
To: tech-talk@aps.anl.gov <tech-talk@aps.anl.gov>
Subject: ADPilatus with PPU

 

All,

I am using ADPilatus (driver version 2.9, core version 3.12.1 ) with a PPU. In this arrangement  Camserver writes files to /ramdisk on the DCU, FURKA copies data from the DCU to the PPU /ramdisk, GRIMSEL copies the  data from /ramdisk on the PPU to network storage.

I do a scan of 361 images at 10 Hz.  I see from the directory listings the files have all appeared in network storage but ArrayCounter_RBV lags, reading ~ 211 at this point and continuing to steadily count up.

The IOC is unaware of the final destination of the files in network storage, so I don't know where  ArrayCounter_RBV  value is coming from. Do you?

Thanks,

John Dobbins

Research Support Specialist

Cornell High Energy Synchrotron Source

Cornell University

www.chess.cornell.edu