Newsgroups: comp.parallel
From: zxu@monalisa.usc.edu (Zhiwei Xu)
Subject: HPF questions
Organization: University of Southern California, Los Angeles, CA
Date: 29 May 1995 05:59:12 GMT
Message-ID: <3qbnrg$kur@usenet.srv.cis.pitt.edu>

Hi,

I have a question about data distribution in HPF: Consider the following code:

real A(n,n), x(n), y(n)

!HPF$ PROCESSOR P(4)
!HPF$ ALIGN x(j) WITH A(i,j)
!HPF$ ALIGN y(i) WITH A(i,j)
!HPF$ DISTRIBUTE A(BLOCK,*) ONTO P

y = MATMUL(A,x)


My question is: "How is the array x distributed?" "Which processor owns x?"

BTW, is there a news group or email-list for discussing HPF?

Has anyone used the APR's XHPF compiler on SP2 (or any other machine)?

Thanks

Zhiwei Xu	zxu@aloha.usc.edu

