ALMA Integrated Computing Team Coordination & Planning Meeting #3 Socorro, 17-19 June 2014 ACA planning Manabu Watanabe, George Kosugi NAOJ
Jan 21, 2016
ALMA Integrated Computing Team
Coordination & Planning Meeting #3 Socorro, 17-19 June 2014
ACA planning
Manabu Watanabe, George Kosugi NAOJ
ICT-CPM3 17-19 June 2014
build of ACACORR is passed both on RH5.5/32-bit and on RH6.5/64-bit for 2014.2.
ACACORR runs on RH6.5/64-bit without failure, but…The data structure and numbers in the BDF for RH6.5/64-bit
are different from those for RH5.5/32-bit.Now, we are trying to find the origin of the differences.
We currently have dual test environments, one for RH5.5/32-bit and the other for RH6.5/64-bit.Until when should the dual environments last?
Porting RH6.5/64-bit to ACACORR
ICT-CPM3 17-19 June 2014
Current Fujitsu RX300S3 will be replaced with new Fujitsu RX100S8.COJ-CC-1, COJ-CPM-1, COJ-CPN-0xx will be upgraded.COJ-DMC-1 will not be upgraded.
G9XE, a custom made PCI-X/PCI-express conversion box, should be installed at the same time.G9XE is stably working since February 2014 in Japan.4 G9XEs for 4 quadrants.
A prototype system for 1Q was setup in NAOJThe feasibility of the plan will be established by proof before
deployment at AOS.
Replacement of ACA computers (1)
ICT-CPM3 17-19 June 2014
Prototype for 1Q in NAOJ (front)
ICT-CPM3 17-19 June 2014
Prototype for 1Q in NAOJ (rear)
ICT-CPM3 17-19 June 2014
COJ-CC-1 (real-time OS)RX100S8 runs on kernel-2.6.29.4-rtos-3.7.1RX100S8 receives 48ms TE signals with PEX-466102 (a new
RS485 IF card) which is installed on a PCI-express bus and RX100S8 runs in HARD mode.
RX100S8 runs with an external network interface card (E1G42ET) which is installed on a PCI-express bus.
COJ-CPM-1/COJ-CPN-0xx (Standard OS)RX100S8 runs on kernel-2.6.18 (RH5.x/32-bit)RX100S8 receives spectral data stably from the ACA correlator
through G9XE. Integration test with HW begins in NAOJ this month.
Test status of the new computers
ICT-CPM3 17-19 June 2014
Operation of ACA correlator at AOS should be stopped for deployment and testing of the new system. It takes 5 days by a provisional estimation. Is February 2015 best time to do?RH5.x/32-bit or RH6.x/64-bit at that time?
Further details are described in the plan document.The document will be available in a couple of weeks.
Replacement of ACA computers (2)
ICT-CPM3 17-19 June 2014
4-bit linearity correction for 2014.2: ICT-3118CDP makes a correction for the nonlinearity at the 4-bit
quantizer in the ACA correlator. 3-bit linearity correction will be upgraded in Feb.2015.
The ACA correlator will have a type of the digital baseband power meter inside which publishes the baseband power detected at DTSRs every 16ms or hopefully every 1ms.
Then CDP uses the baseband power to make 3-bit linearity correction per integration: CSV-2810
CDP may take over FPS (Frequency profile synthesis) depending on the discussion of the next session….
hastings, the log message analysis tool, is under study.
Software development