통합 검색 | Korea Science

Sohn, Bong-Won;Chung, Hyun-Soo;Kobayashi, Hideyuki;Sasao, Tetsuo;Hirota, Tomoya;Kameya, Osamu;Choi, Yoon-Kyung
- 천문학회보
- /
- 제30권2호
- /
- pp.66.2-66.2
- /
- 2005
PDF

Park, Sun-Youp;Kang, Yong-Woo;Roh, Duk-Gyoo;Oh, Se-Jin;Yeom, Jae-Hwan;Sohn, Bong-Won;Yukitoshi, Kanya;Byun, Do-Young
- 한국우주과학회:학술대회논문집(한국우주과학회보)
- /
- 한국우주과학회 2008년도 한국우주과학회보 제17권2호
- /
- pp.37.2-37.2
- /
- 2008
Korea-Japan Joint VLBI Correlator (KJJVC), to be used for Korean VLBI Network (KVN) in Korea Astronomy & Space Science Institute (KASI), is a high-speed calculator that outputs the correlation results in the maximum speed of 1.4GB/sec.To receive and record this data keeping up with this speed and with no loss, the design of the software running on the data archive system for receving and recording the output data from the correlator is very important. But, the simple kind of programming using just single thread that receives data from network and records it by turns, can cause a bottleneck effect while processing high speed data and a probable data loss, and cannot utilize the merit of hardwares supporting multi core or hyper threading, or operating systems supporting these hardwares. In this talk we summarize the design of the data transfer software for KJJVC and high speed, large capacity data archive system using general socket programming and multi threading techniques, and the pre-BMT(Bench Marking Test) results from the tests of the storage product providers' proposals using this software.
PDF