HTML version of Scripted Foils prepared May 6 97

Foil 50 What Limits Performance of Compiled Java?

From The Use of Web Technologies (at NPAC) in HPCC Collaboration and Education Trip to Digital Corporation in New Hampshire -- May 8 97. by Geoffrey C. Fox *
1 Syracuse Workshop saw no serious problem to High Performance Java on sequential or Shared Memory Machines
2 Some restrictions are needed in programming model
3 For instance, Avoid Complicated Exception handlers in areas compilers need to optimize!
4 Should be able to get comparable performance on compiled Java C and Fortran starting with either Java Language or JavaVM bytecodes
5 The Interpreted (Applet) JavaVM mode would always be slower than compiled Java/C/Fortran -- perhaps by a factor of two with best technology
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