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Computer Facilities

Taiwan-ARC currently has seven Linux computing nodes (almat1, almat2, almat3, almat4, almat5, almat6, and almat7). 'uruma', a Linux machine which belongs to the SMA project, is also available to ALMA users. In addition, 'hilo' (Linux desktop) and 'almac' (iMac) are located on the 13th Floor observation room. The Lustre File system and the other machines are located in the B3 server room. ALMA software is available on all machines. See the tables below for the specifications of computers and disk arrays available to ALMA users. If you need a user account, please send your request to arcasiaa.sinica.edu.tw. The Lustre File System will be used for data reduction. The NFS disk arrays are used for local data archive storage.


ALMA Computers

  • Click here to see the workload/status of all alma computers.
  Name   System   CPU   RAM   Internal storage
almat1 CentOS
7.3
2x Intel Xeon E5-2687-V4 @ 3.0 GHz
24-core total
512 GB 4.6TB SSD array (/data)
almat2 CentOS
7.3
2x Intel Xeon E5-2667-V4 @ 3.2 GHz
16-core total
256 GB 3.6TB SSD array (/data)
almat3 CentOS
7.3
Intel Xeon X5690 @ 3.47 GHz
12-core total
64 GB
uruma CentOS
7.2
Intel Xeon X5690 @ 3.47 GHz
12-core total
64 GB 15 TB (/data)
almat4 CentOS
7.5
2x Intel Xeon Gold 6134 @ 3.2 GHz
16-core total
256 GB
almat5 CentOS
7.5
2x Intel Xeon Gold 6134 @ 3.2 GHz
16-core total
256 GB
almat6 CentOS
7.2
Intel Xeon E5-2643 v3 @ 3.40GHz
12-core total
192 GB 6.5TB (/data)
almat7 CentOS
7.2
Intel Xeon E5-2643 v3 @ 3.40GHz
12-core total
192 GB 6.5TB (/data)

ALMA Disk Arrays

  Name   Capacity   Path
Lustre File System 780 TB total capacity. Mounted on ALMA servers via 100Gb/s Infiniband /almalustre
almanfs 48 TB (for local archive) /almad1 and /almad2


Our ALMA and SMA servers, plus the diskarrays and servers for the Lustre File System, in the server room


Schematic of the current Taiwan-ARC computing facility

  • Two presentation slides by Zheng Meyer-Zhao detailing the ARC-Taiwan computing facility: Slide 1 and Slide 2.
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