Difference between revisions of "EJFAT EPSCI Meeting Jun. 22, 2022"

Latest revision as of 17:15, 22 June 2022

The meeting time is 2:00pm.

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	https://jlab-org.zoomgov.com/j/1617413961?pwd=QWpXalc0SXFrSUNBNmFrbVZycisrUT09&from=addon

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161 741 3961

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Agenda:

Previous meeting
Status:
- Using ESnet FPGA f/w build 28 April
  - Specs
  - Jumbo Frames
  - arp, ping, ICMP filtering
  - Port entropy
- Script based LB Control Plane
- In ESnet Legal Review
  - Support C libraries for LB Host Control Plane
  - ESnet smartnic open-source GitHub repo - in legal review
  - ESnet private, forkable Jlab P4 and simulations GitHub repo - in legal review
- ERSAP feed end bottleneck needs investigation; Timmer's blaster may provide relief
- New machines (6) rec'd, installed w/ Ubuntu 20.04 on EJFAT subnet (VLAN 937 172.19.22.0/24)
- Spare EJFAT equip loaners:
  - (4) DAQ dev machines indra-s[1-3] 129.57.29/109.23[0-2]
    - alkaid: 24 Xeon Gold 3.4 GHz cores, 100Gbs
    - indra-s1: 24 Xeon Gold 3.0 GHz cores, 100Gbs
    - indra-s2: 32 Xeon Gold 3.2 GHz cores, 100Gbs
    - indra-s3: 32 Xeon Gold 2.3 GHz cores, 100Gbs, 750GB ram disk
  - (4) DAQ Farm machines dafarm6[1-4] currently on 129.57.29.17[1-4] - each 32 Xeon 2.0Ghz cores - 1 Gbs NIC + (4) 10Gbs Spare NICs
  - (4) Unbuilt DAQ Farm machines - each 32 Xeon 2.0Ghz cores - 1 Gbs NIC + (4) 10Gbs Spare NICs
  - PR408549 (6) 100Gbs NICs - Shipped
  - PR408870 PR408938 (2) 100Gbs Arista switches, ~~transceivers, cables~~, etc - ETA ~~1 July~~ 5 October
Next Steps:
- EJFAT VLAN Checkout
- Network Performance:
  - FPGA LB Throughput - max sustained 90Gbs
  - Host NICs
  - Host S/W Reassembly - better algorithms, buffering, asynchronicity, etc.
  - EJFAT UDP Transmission Performance
  - Need better parameters for event reassembly/reconstruction
  - numa tools on ubuntu:
    - sudo apt install hwloc-nox
    - sudo apt install numactl
  - lstopo
  - numactl --hardware
  - To control the scheduling class, you can use the chrt command.
  - To pin to CPUs, use the taskset command. Or use the underlying syscalls.
  - kernel dameon threads
    - handle NIC driver interrupts
    - set scheduling class to SCHED_FIFO / SCHED_RR of reassembly process
  - want to set cpu socket of reassembly in common NUMA domain as NIC
  - DPDK will own NIC bypassing kernel, etc. - ESnet reports can stream 100 Gbps using DPDK; Pktgen-DPDK
  - Pktgen-DPDK
  - Look at ROCE / NIC
- Candidate Test Report
- ESnet UDP tuning
- Control Plane
  - Will interact with SLURM / Kubernetes
  - Python based (?)
  - Control Plane daemon for compute host (?)
  - Demonstrate CP based flexibility/elasticity
  - SLURM env for EJFAT VLAN (Hess)
- DAQ/VTP Data Generation Test Harness
- ~~Vivado Licesnses for new machines~~
- Open Nic Shell
- ACAT 2022 - September/Italy - Abstract (July 14) / Paper
- RT2022 - August 01-05 Conference
- RT 2022 Paper
Back Burner / Downstream:
- Hall-B FT calorimeter and hodoscope streaming readout test
  - May be able to use Abbott's indra-s1 setup
  - May be able to use new VTP f/w with Hall-B VTP's
  - CODA 3.10 + ERSAP for new VTP f/w
  - CODA 2.0 (non-streaming) for old VTP f/w
  - Diagram
  - Hall-B to start taking data June 8
  - Hall B VTPs on .167. subnet
- HOSS
  - parallelize writing of raw data files
  - distribute raw data across multiple compute nodes for calibration skims
  - 1 Gbs at hi-luminosity
  - Hall-D comms with DAQ 109 subnet require network customization; (EJFAT subnet)
  - Hall-D EJFAT use case
  - Hall-D EJFAT Network Diagram
- IPV6 testing
AOT

@@ Line 70: / Line 70: @@
 *** [https://www.open-mpi.org/projects/hwloc/lstopo/ lstopo]
 *** numactl --hardware
-*** [https://github.com/Xilinx/open-nic-shell Open Nic Shell]
 *** To control the scheduling class, you can use the [https://www.informit.com/articles/article.aspx?p=101760&seqNum=4#:~:text=Linux%20provides%20two%20real%2Dtime,scheduled%20over%20any%20SCHED_OTHER%20tasks. chrt] command.
 *** To pin to CPUs, use the ''taskset'' command. Or use the underlying ''syscalls''.
@@ Line 77: / Line 76: @@
 **** set scheduling class to ''SCHED_FIFO'' / ''SCHED_RR'' of reassembly process
 *** want to set cpu socket of reassembly in common NUMA domain as NIC
-*** DPDK will own NIC bypassing kernel, etc.; [https://github.com/pktgen/Pktgen-DPDK Pktgen-DPDK]
+*** [http://www.dpdk.org DPDK] will own NIC bypassing kernel, etc. - ESnet reports can stream 100 Gbps using DPDK; [https://github.com/pktgen/Pktgen-DPDK Pktgen-DPDK]
 *** [https://pktgen-dpdk.readthedocs.io/en/latest Pktgen-DPDK]
+*** Look at [https://support.mellanox.com/s/article/roce-v2-considerations ROCE] / NIC
 ** [https://www.overleaf.com/latex/templates/latex-template-for-technical-report/qtznkrpkjybm Candidate Test Report]
 ** [https://fasterdata.es.net/host-tuning/linux/udp-tuning/ ESnet UDP tuning]
@@ Line 86: / Line 86: @@
 *** Control Plane daemon for compute host (?)
 *** Demonstrate CP based flexibility/elasticity
-** Look at iperf2 for network testing
+*** SLURM env for EJFAT VLAN (Hess)
-** Look at [https://support.mellanox.com/s/article/roce-v2-considerations ROCE] / NIC
-** [http://www.dpdk.org DPDK] - ESnet reports can stream 100 Gbps using DPDK.
-** SLURM env for EJFAT VLAN (Hess)
 ** DAQ/VTP Data Generation Test Harness
 ** <s>Vivado Licesnses for new machines</s>
+** [https://github.com/Xilinx/open-nic-shell Open Nic Shell]
 ** ACAT 2022 - September/Italy - Abstract (July 14) / Paper
 ** [https://indico.cern.ch/event/1109460/ RT2022 - August 01-05 Conference]

Difference between revisions of "EJFAT EPSCI Meeting Jun. 22, 2022"

Latest revision as of 17:15, 22 June 2022

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