From 98f7f040fb92e2cb23b78b47e3d9614dc3aeaea9 Mon Sep 17 00:00:00 2001 From: lkcl Date: Mon, 5 Sep 2022 16:21:36 +0100 Subject: [PATCH] --- openpower/sv/remap.mdwn | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/openpower/sv/remap.mdwn b/openpower/sv/remap.mdwn index dbb18875e..92e3dfc59 100644 --- a/openpower/sv/remap.mdwn +++ b/openpower/sv/remap.mdwn @@ -284,6 +284,12 @@ not make sense. Many 3-input instructions (madd, fmadd) unlike Scalar Reduction in particular do not make sense, but `ternlogi`, if used with care, would. +Critical to note regarding use of Parallel-Reduction REMAP is that, +exactly as with Matrix Mode, the `svshape` instruction *requests* +a certain Vector Length (number of elements to reduce) and then +sets VL and MAXVL at the number of **operations** needed to be +carried out. + **Parallel-Reduction with Predication** To avoid breaking the strict RISC-paradigm, keeping the Issue-Schedule -- 2.30.2