HELP! * BLUE=global GREY=local Global HTML version of Foils prepared July 23,1995

Foil 36 Performance barriers

From Full Relational Database HPDC-4 Presentation HPDC-4 Tutorial/CPS616 Spring95 -- August 1, Pentagon City Virginia. by Gang Cheng Marek Podgorny (Geoffrey Fox) * See also color IMAGE
startup (latency)
interference (communication, locking)
load balance (execution skew - all the execution occurs in one partition)
data-partition (data skew - all the data is placed in one partition)
imbalance of system resources (CPUs and I/O channels)
CPU-intensive or I/O intensive queries
Northeast Parallel Architectures Center, Syracuse University, npac@npac.syr.edu

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