ALMA Integrated Computing Team Coordination & Planning Meeting #3 Socorro, June 2014 ACA planning Manabu Watanabe, George Kosugi NAOJ

ICT-CPM June 2014 n build of ACACORR is passed both on RH5.5/32-bit and on RH6.5/64-bit for n 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. n 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-CPM June 2014 n 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. n 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. n A prototype system for 1Q was setup in NAOJ  The feasibility of the plan will be established by proof before deployment at AOS. Replacement of ACA computers (1)

ICT-CPM June 2014 Prototype for 1Q in NAOJ (front)

ICT-CPM June 2014 Prototype for 1Q in NAOJ (rear)

ICT-CPM June 2014 n COJ-CC-1 (real-time OS)  RX100S8 runs on kernel rtos  RX100S8 receives 48ms TE signals with PEX (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. n COJ-CPM-1/COJ-CPN-0xx (Standard OS)  RX100S8 runs on kernel (RH5.x/32-bit)  RX100S8 receives spectral data stably from the ACA correlator through G9XE. n Integration test with HW begins in NAOJ this month. Test status of the new computers

ICT-CPM June 2014 n 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? n Further details are described in the plan document.  The document will be available in a couple of weeks. Replacement of ACA computers (2)

ICT-CPM June 2014 n 4-bit linearity correction for : ICT-3118ICT-3118  CDP makes a correction for the nonlinearity at the 4-bit quantizer in the ACA correlator. n 3-bit linearity correction will be upgraded in Feb  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-2810CSV-2810 n CDP may take over FPS (Frequency profile synthesis)  depending on the discussion of the next session…. n hastings, the log message analysis tool, is under study. hastings Software development