Separate HTML for GLOBAL Foil 30 Isn't the Web hardware and software too slow to be interesting for HPCC? -Java- I

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Foil 30 Isn't the Web hardware and software too slow to be interesting for HPCC? -Java- I

From Feb 5 Delivered Lecture for Course CPS616 -- Java as a Computional Science and Engineering Programming Language CPS616 spring 1997 -- Feb 5 1997. by Geoffrey Fox * See also color IMAGE

Secs 171.3

Addon

Java is currently semi-interpreted and (as in Linpack online benchmark) is about 50 times slower than good C or Fortran

http://www.netlib.org/benchmark/linpackjava/

Java --> (javac)--> Downloadable Universal Bytecodes --> (Java Interpreter)

--> Native Machine Code

Just in Time Compilers speed this up by factor of 10

However Language can be efficiently compiled with "native compilers"

Java ----> (native compiler)

---> Native (for Particular Machine) Code

Lots of Interesting Compiler issues for both compiled and scripted Java

Northeast Parallel Architectures Center, Syracuse University, npac@npac.syr.edu

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