> Hello,
> 
> I am doing a project of parallel computing using the pvm software.
> When I tried to declare a large float matrix with size 1024 * 1024,
> it resulted segmentation fault in running the program.  If I use a
> float matrix with smaller size, it is ok.  Is there anyone have the
> clue ? I am running out of time.  Please help.  Thanks.

Since I know nothing about pvm or what it is, I'll assume that you're
writing a C program of some sort.  Are you defining that array on the
stack?  If so, you're blowing past the stack limit.  That array is
8MB.  Define it as a global or file-local.

	--jtc