مجموعه داده های مرتبط با رایانش ابری

در این صفحه دوستان میتوانند مجموعه داده های مرتبط با رایانش ابری را جهت استفاده های تحقیقاتی به اشتراک بگذارند.

The San Diego Supercomputer Center (SDSC) Blue Horizon log

این مجموعه داده متعلق به مرکز ابررایانه San Diego [۱] است. این مجموعه داده در پژوهش های متعددی در حوزه رایانش ابری مورد استفاده قرار گرفته است.

مشخصلات لاگ

System:  144-node IBM SP, with 8 processors per node 
Duration:  Apr 2000 thru Jan 2003 
Jobs:  250,440 
Description: An extensive log, starting when the machine was just installed, and then covering more than two years of production use. 
             It contains information on the requested and used nodes and time, CPU time, submit, wait and run times, and user. 
             The workload log from the SDSC Blue Horizon was graciously provided by Travis Earheart and Nancy Wilkins-Diehr, 
             who also helped with background information and interpretation. 
             If you use this log in your work, please use a similar acknowledgment. 

محیط سیستم

The total machine size is 144 nodes. Each is an 8-way SMP with a crossbar connecting the processors to a shared memory.
These nodes are for batch use, with jobs submitted using LoadLeveler. The data available here comes from LoadLeveler.

The log also contains interactive jobs up to July 2002. 
At about that time an additional 15 nodes were acquired for interactive use, e.g. development. 
These nodes have only ethernet communication, employ timesharing scheduling, and reportedly have only 4 processors each. 
These nodes are handled by a separate instance of LoadLeveler, and their workload is not available here.

The scheduler used on the machine is called Catalina. 
This was developed at SDSC, and is similar to other batch schedulers. 
It uses a priority queue, performs backfilling, and supports reservations.

Jobs are submitted to a set of queues. The main ones are

Name	Time limit	Node limit
interactive	2hr	8
express	2hr	8
high	36hr	--
normal	36hr	--
low	--	--

According to on-line documentation, towards the end of 2001 the limits were different:

Name	Time limit	Node limit
interactive	2hr	--
express	2hr	8
high	18hr	31
normal	18hr	31
low	18hr	31

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