EPSCI SRO Meeting Apr. 20, 2020

This meeting scheduled via MS Teams. Join link should be in your calendar.

Previous Meeting
Announcements
- YR meeting last Wed.
  - https://indico.bnl.gov/event/8222/
EIC Streaming Readout VI workshop
- May 13-15 (online only 2.5 days)
  - https://www.jlab.org/indico/event/378/
Use of Hall-B testbedS
Status of ADIOS Testing
Status of WMS design
AOT

TBD

Announcements

Teams Whiteboard feature does not seem to be present. David submitted a Service Now request and will follow up on it.
- Update: This feature is not available in the "government version" of O365 at the moment.
Talks for upcoming EIC SRO workshop next month
- Everyone should think about what, if anything we can present
- Update: Looks like we may be too late since the agenda already is filled out. I also heard Chris say something about turning people away already. https://www.jlab.org/indico/event/378/

Hall-B Testbed

Ben fixed TCP stack on FPGA
Sergey B. asked folks to wait on using it until he has had a chance to test the fix

Offline TriDAS for testing

Chris suggested setting up a purely software TriDAS instance that we could work with outside of the context of Hall-B
- Generally thought to be a good idea and Chris will look into doing it

ADIOS

Carl has continued his testing of the ADIOS I/O interface library
It supports multiple engines
The wide area network engine uses zmq
- their system allows receivers to drop packets
- Carl's tests failed due to having too small of packets so the processes started and quit too quickly
Started looking at SST engine
- sockets or RDMA (if it is available)
Tested on Mac at 400MB/s
Tested on INDRA 100Gbs system up to 1 GB/s (factor of 10 slower than hardware)
Carl noted the ADIOS user interface is pretty simple and easy to use. The ADIOS authors have also been very response so far to questions/requests

WMS Meeting

David suggested canceling the WMS meeting Fridays in an attempt to reduce the number of meetings
There were no objections

Carl will work on increasing ADIOS bandwidth on INDRA
Vardan will work with Sergey B. to get access to the Hall-B testbed once it is available so he can start stressing the TriDAS system there
Chris will set up an offline TriDAS system so he can start testing it outside of the Hall-B environment
Nathan will work on slides for the Marco SRO talk next week (Thurs. 4/23)

Contents