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Computer Facilities

Taiwan-ARC currently has eight Linux computing nodes (almat1, almat2, almat3, almat4, almat5, almat6, almat7, and almat8). In addition, 'acdc1' (Linux desktop) is located in 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 is used for data reduction. The NFS disk array is used for longer term local data storage.


ALMA Computers

  • Click here to see the workload/status of all alma computers.
  Name   System   CPU   RAM   Internal storage
almat1 CentOS
7.9 		2x Intel Xeon E5-2687-V4 @ 3.0 GHz
24-core total		 1536 GB 4.6TB SSD array (/data)
almat2 CentOS
7.9 		2x Intel Xeon E5-2667-V4 @ 3.2 GHz
16-core total 		768 GB 3.6TB SSD array (/data)
almat3 CentOS
7.9 		2x Intel Xeon Gold 6134 @ 3.2 GHz
16-core total		 1024 GB
almat4 CentOS
7.9 		2x Intel Xeon Gold 6134 @ 3.2 GHz
16-core total		 1024 GB
almat5 CentOS
7.9 		2x Intel Xeon Gold 6134 @ 3.2 GHz
16-core total		 512 GB
almat6 CentOS
7.9 		Intel Xeon E5-2643 v3 @ 3.40GHz
12-core total		 192 GB 6.5TB (/data)
almat7 CentOS
7.9		 Intel Xeon E5-2643 v3 @ 3.40GHz
12-core total		 192 GB 6.5TB (/data)
almat8 CentOS
7.9 		2x Intel Xeon Gold 6134 @ 3.2 GHz
16-core total		 512 GB

ALMA Disk Arrays

  • Click here to see an almalustre usage plot


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

  Name   Capacity   Path
Lustre File System 1.7 PB total capacity. Mounted on ALMA servers via 100Gb/s Infiniband /almalustre
NAS 500 TB total capacity. Mounted on ALMA servers via 10Gb/s fibre network /almanfs