ALMA Integrated Computing Team Coordination & Planning Meeting #3 Socorro, 17-19 June 2014

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


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)


Prototype for 1Q in NAOJ (front)


Prototype for 1Q in NAOJ (rear)


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


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)


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

ALMA Integrated Computing Team Coordination & Planning Meeting #3 Socorro, 17-19 June 2014

Documents

Transcript of ALMA Integrated Computing Team Coordination & Planning Meeting #3 Socorro, 17-19 June 2014