topic Re: Request extension to ALLOCATE command in Software Archive

Request extension to ALLOCATE command

michael-a-carr — Fri, 12 Apr 2002 04:55:36 GMT

I'd like to request a Compaq extension to ALLOCATE which allows the programmer to specify the desired data alignment for the allocated array. For example,

ALLOCATE(bigarray(20000), ALIGN = 32)

the result of this command would be an array aligned on a 32-byte boundary. This little extension would save me massive headaches... :)

Re: Request extension to ALLOCATE command

Intel_C_Intel — Fri, 12 Apr 2002 06:44:19 GMT

I think this would be useful, too. When you're doing scatter-gather with streaming stores you need to align to cache lines or face a 2X loss of performance. Does CVF have an extension at the present time to force streaming stores via MOVNTQ?

Re: Request extension to ALLOCATE command

Steven_L_Intel1 — Fri, 12 Apr 2002 21:41:23 GMT

I also think this is a good suggestion. I'll pass it along. CVF doesn't have an extension such as you describe, James. Intel Fortran might, but I haven't heard of that one specifically.

Steve