Commitment of TOKYO- -LCG2 to LCG2 to Commitment of TOKYO Atlas Computing System Atlas Computing System Commissioning Commissioning Hiroshi Sakamoto Hiroshi Sakamoto ICEPP, University of Tokyo ICEPP, University of Tokyo Commitment of Tokyo-lcg2 to atlas csc / H. Sakamoto / ISGC2006 TAIPEI וֹכּמּף ףץ٪ّ٠מּَِ ٩٭۶ףוֹ٭٩ץף ێ ۖףףף �ِ�ِ�
Contents Contents TOKYO- -LCG2 Status LCG2 Status TOKYO WLCG MoU WLCG MoU Present Computing Resources Present Computing Resources SC4 Commitment SC4 Commitment Atlas Computing System Commissioning Atlas Computing System Commissioning Connectivity Consideration Connectivity Consideration Tier1 Association Tier1 Association Short Term Plan Short Term Plan Commitment of Tokyo-lcg2 to atlas csc / H. Sakamoto / ISGC2006 TAIPEI וֹכּמּף ףץ٪ّ٠מּَِ ٩٭۶ףוֹ٭٩ץף ێ ۖףףף�ِ�ِ�
TOKYO- -LCG2 Status LCG2 Status TOKYO WLCG- -MoU (CERN MoU (CERN- -Tokyo) Signed. Tokyo) Signed. WLCG March 31st, President of Univ. Tokyo. March 31st, President of Univ. Tokyo. April 10th, Chief Scientific Officer of CERN. April 10th, Chief Scientific Officer of CERN. Resource Plan Resource Plan Commitment of Tokyo-lcg2 to atlas csc / H. Sakamoto / ISGC2006 TAIPEI וֹכּמּף ףץ٪ّ٠מּَِ ٩٭۶ףוֹ٭٩ץף ێ ۖףףף�ِ�ِ�
Computing Resources for SC4 Resources for SC4 Computing Commitment of Tokyo-lcg2 to atlas csc / H. Sakamoto / ISGC2006 TAIPEI וֹכּמּף ףץ٪ّ٠מּَِ ٩٭۶ףוֹ٭٩ץף ێ ۖףףף�ِ�ِ�
HP blade server HP blade server HP ProLiant HP ProLiant BL20p BL20p Xeon 2.8GHz Xeon 2.8GHz 2CPU/node 2CPU/node 1GB memory - -> now 2GB/node > now 2GB/node 1GB memory SCSI 36GBx2, SCSI 36GBx2, hardware RAID1 hardware RAID1 3 GbE NIC 3 GbE NIC iLO remote administration tool remote administration tool iLO 8 blades/ Enclosure(6U) 8 blades/ Enclosure(6U) Total 108 blades(216 CPUs) in 3 racks Total 108 blades(216 CPUs) in 3 racks Commitment of Tokyo-lcg2 to atlas csc / H. Sakamoto / ISGC2006 TAIPEI וֹכּמּף ףץ٪ّ٠מּَِ ٩٭۶ףוֹ٭٩ץף ێ ۖףףף�ِ�ِ�
SC4 Commitment SC4 Commitment LCG- -SC4/Atlas CSC SC4/Atlas CSC LCG Prepare for physics analysis Prepare for physics analysis Based on the existing circumstances in 2006 Based on the existing circumstances in 2006 Requirements from Atlas Japan Requirements from Atlas Japan Establish a sufficient analysis infrastructure Establish a sufficient analysis infrastructure based on the resources available in this based on the resources available in this period. period. Strong concern to access ESD samples, Strong concern to access ESD samples, especially just after the collision starts. especially just after the collision starts. Exercise should be performed beforehand. Exercise should be performed beforehand. Commitment of Tokyo-lcg2 to atlas csc / H. Sakamoto / ISGC2006 TAIPEI וֹכּמּף ףץ٪ّ٠מּَِ ٩٭۶ףוֹ٭٩ץף ێ ۖףףף�ِ�ِ�
Tiers of ATLAS Tiers of ATLAS T0 VO box LFC T1 T1 VO box … . LFC FTS Server T0 T2 FTS Server T1 T2 LFC: local within ‘ cloud ’ Slide from Dario Barberis All SEs SRM Commitment of Tokyo-lcg2 to atlas csc / H. Sakamoto / ISGC2006 TAIPEI וֹכּמּף ףץ٪ّ٠מּَِ ٩٭۶ףוֹ٭٩ץף ێ ۖףףף�ِ�ِ�
Atlas Computing System Atlas Computing System Commissioning Commissioning Tier1- -Tier2 Association Tier2 Association Tier1 Assuming that Tier1 has enough bandwidth to Assuming that Tier1 has enough bandwidth to each Tier2, and the RTT is short. each Tier2, and the RTT is short. … But, in reality … But, in reality Commitment of Tokyo-lcg2 to atlas csc / H. Sakamoto / ISGC2006 TAIPEI וֹכּמּף ףץ٪ّ٠מּَِ ٩٭۶ףוֹ٭٩ץף ێ ۖףףף�ِ�ِ�
Commitment of Tokyo-lcg2 to atlas csc / H. Sakamoto / ISGC2006 TAIPEI וֹכּמּף ףץ٪ّ٠מּَِ ٩٭۶ףוֹ٭٩ץף ێ ۖףףף�ِ�ِ�
Commitment of Tokyo-lcg2 to atlas csc / H. Sakamoto / ISGC2006 TAIPEI וֹכּמּף ףץ٪ّ٠מּَِ ٩٭۶ףוֹ٭٩ץף ێ ۖףףף�ِ�ِ�
Connectivity Consideration Connectivity Consideration Taipei - - Tokyo Tokyo Taipei Limited Bandwidth (620Mbps) Limited Bandwidth (620Mbps) Small Round Trip Time (40ms) Small Round Trip Time (40ms) Europe - - Tokyo Tokyo Europe High Bandwidth (10Gbps) High Bandwidth (10Gbps) Large Round Trip Time (300ms) Large Round Trip Time (300ms) Need further consideration Need further consideration Commitment of Tokyo-lcg2 to atlas csc / H. Sakamoto / ISGC2006 TAIPEI וֹכּמּף ףץ٪ّ٠מּَِ ٩٭۶ףוֹ٭٩ץף ێ ۖףףף�ِ�ِ�
Tier1- -Tier2 Relation Tier2 Relation Tier1 Operation Operation Same time zone ~ APROC Same time zone ~ APROC Local File Catalog Local File Catalog Small RTT is required Small RTT is required File Transfer : Experimental Data File Transfer : Experimental Data Full AOD Full AOD Static transmission. Well scheduled. Bandwidth required. Static transmission. Well scheduled. Bandwidth required. ESD samples ESD samples Dynamical access pattern. Transfer on demand. Large Dynamical access pattern. Transfer on demand. Large bandwidth and small RTT. bandwidth and small RTT. File Transfer : MC Simulation Data File Transfer : MC Simulation Data Static transmission. Well scheduled. Bandwidth Static transmission. Well scheduled. Bandwidth required. required. Commitment of Tokyo-lcg2 to atlas csc / H. Sakamoto / ISGC2006 TAIPEI וֹכּמּף ףץ٪ّ٠מּَِ ٩٭۶ףוֹ٭٩ץף ێ ۖףףף�ِ�ِ�
Tier1 Association Tier1 Association Asia- -Pacific Region Pacific Region Asia Only one Tier1 in this region Only one Tier1 in this region Backup Tier1 in North America/Europe Backup Tier1 in North America/Europe Connection to multiple Tier1s Connection to multiple Tier1s Data transfer at maximum throughput Data transfer at maximum throughput Multiple FTS Channels Multiple FTS Channels (1) Limited BW, but Small RTT (1) Limited BW, but Small RTT (2) Wide BW, but Large RTT (2) Wide BW, but Large RTT Commitment of Tokyo-lcg2 to atlas csc / H. Sakamoto / ISGC2006 TAIPEI וֹכּמּף ףץ٪ّ٠מּَِ ٩٭۶ףוֹ٭٩ץף ێ ۖףףף�ِ�ِ�
Short term plan Short term plan Service Challenge 4: Service Challenge 4: Standard Atlas CSC with IN2P3 Tier1 Standard Atlas CSC with IN2P3 Tier1 File Catalog at large RTT? File Catalog at large RTT? Distributed Analysis R&D with ASGC Tier1 Distributed Analysis R&D with ASGC Tier1 FTS channel. File catalog FTS channel. File catalog Analysis on demand. Analysis on demand. Improve Regional Network Connectivity Improve Regional Network Connectivity Need more efforts. Need more efforts. Commitment of Tokyo-lcg2 to atlas csc / H. Sakamoto / ISGC2006 TAIPEI וֹכּמּף ףץ٪ّ٠מּَِ ٩٭۶ףוֹ٭٩ץף ێ ۖףףף�ِ�ِ�
Summary Summary ATLAS CSC ATLAS CSC Application to Asia- -Pacific Region needs special Pacific Region needs special Application to Asia consideration in the existing environment. consideration in the existing environment. Our challenges Our challenges IN2P3 Tier1 : Verify that Atlas CSC model works even IN2P3 Tier1 : Verify that Atlas CSC model works even in large RTT connection. in large RTT connection. ASGC Tier1 : Special program utilizing full capacity of ASGC Tier1 : Special program utilizing full capacity of limited BW for data transmission on demand. limited BW for data transmission on demand. Support and understanding by Tier1s and Atlas Support and understanding by Tier1s and Atlas are essential. are essential. Collaboration with other AP Tier2s is also Collaboration with other AP Tier2s is also important to share experiences. important to share experiences. Commitment of Tokyo-lcg2 to atlas csc / H. Sakamoto / ISGC2006 TAIPEI וֹכּמּף ףץ٪ّ٠מּَِ ٩٭۶ףוֹ٭٩ץף ێ ۖףףף�ِ�ِ�
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