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WP4: OAC BeoWulf

WP4: OAC BeoWulf. Hardware choice criteria : physical space problem flexible configuration cope with the technology transition for CPU. WP4: OAC BeoWulf. BeoWulf arrived in Napoli on November 14th Configuration: 1 Master 8 slave nodes

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WP4: OAC BeoWulf

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  1. WP4: OAC BeoWulf • Hardware choice criteria: • physical space problem • flexible configuration • cope with the technology transition for CPU

  2. WP4: OAC BeoWulf BeoWulf arrived in Napoli on November 14th Configuration: 1 Master 8 slave nodes 1 Switch Slave nodes configuration: cabinet 2U MB Tyan TIGER 200T dual processor  CPU PIII 1GHz (can mount PIIIs)  RAM 512MB ECC registered  HD 40 GB IBM IDE  Network: 2 modules 100TBase

  3. WP4: OAC BeoWulf • Master configuration: • cabinet 4 U • MB TYAN Thunder HE SL dual Processor • CPU: two PIII 1 GHZ • RAM: 1 GB ECC registered • 2 HD 75 GB + 1 HD 18 GB scsi • Gigabit ethernet module • Switch: • Allied Telesyn 24 ports 100TBase • 1 port Gigabit ethernet • Total cost: • 14 KEU + tax

  4. WP4: OAC BeoWulf • Software • OS: LINUX 7.2 kernel 2.4.7-10 • Administration: OSCAR 1.1

  5. Some results with BeoWulf at ESO • To create a Master Bias out of 5 raw WFI images using • a special designed eclipse recipe: 68 sec • To create a Master Flat-Field out of 5 raw dome-flats • and 5 sky-flats: 390 sec • To obtain a catalogue of identified standard stars from a raw • Landolt field (i.e. including astrometric calibration): 140 sec • The same for 1 CCD extension processed on one node: 88 sec

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