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The Cray XT4 Quad-core : A First Look...

Publication Type
Conference Paper
Publication Date
Conference Name
Cray User Group (CUG) 2008
Conference Location
Helsinki, Finland
Conference Date
-

The Cray XT4 at Oak Ridge National Laboratory (ORNL), named Jaguar, has recently been up-
graded, from dual-core to quad-core processors in addition to other significant changes. Although we
have had very limited access to the machine and therefore are not presenting definitive performance
results, we can share some meaningful and constructive experiences to the user community which could
be of assistance as they gain access to Jaguar as well as other multi-core processor based parallel com-
puters. These experiences were gained while porting a broad set of scientific application programs to
Jaguar.