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CNAF(Bologna): GARA

CNAF(Bologna): GARA. Globus Architecture for Reservation and Allocation. Server. Gara Test: Implementation. CISCO 7500. CISCO 7200. sunlab3. sunlab2. VC 100 Mbps. FE. FE. Client GARA API. GARA Network Resource Manager. Gara Test: basic experiment.

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CNAF(Bologna): GARA

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  1. CNAF(Bologna): GARA Globus Architecture for Reservation and Allocation

  2. Server Gara Test: Implementation CISCO 7500 CISCO 7200 sunlab3 sunlab2 VC 100 Mbps FE FE Client GARA API GARA Network Resource Manager Padova - 16 June 2000

  3. Gara Test: basic experiment • Multiple flow, network reservation: bulk data transfert (background flow) + competing best effort flow + foreground flows with immidiate allocation. • Multiple flow, network+CPU reservation. • Evaluation tools: UDP traffic generator (modified version of gen_send and gen_recv; MGEN/DREC) and modified version of ttcp. Padova - 16 June 2000

  4. Discussion (1): CPU scheduler • Is the CPU scheduler good for our needs? • Is the DSRT scheduler ready to be used with job submission? • When should I use it together with network reservation? • In which conditions (CPU architecture, platform,…) can I manage CPU reservations with Gara? Padova - 16 June 2000

  5. Discussion (2): Globus Resource Information Service • How can I search in the GRIS network resources? • After reservation successed, how is the GRIS updated? • collision in reservation request Padova - 16 June 2000

  6. Discussion (3): Gara&…what? • Has Gara been tested only with dedicated evaluation tools or also with “real” applications? • How can we use network resource reservation for our needs? In conjunction with data transfert ftp API? Padova - 16 June 2000

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