This is an automated email from the ASF dual-hosted git repository.
mboehm7 pushed a commit to branch main
in repository https://gitbox.apache.org/repos/asf/systemds.git
The following commit(s) were added to refs/heads/main by this push:
new e40bbfec12 [SYSTEMDS-3920] Vector API for Codegen Outer-Products
e40bbfec12 is described below
commit e40bbfec12eb18620f7f18436ca85685356a703a
Author: Hubert Krawczyk <[email protected]>
AuthorDate: Sat Nov 1 10:41:25 2025 +0100
[SYSTEMDS-3920] Vector API for Codegen Outer-Products
Closes #2349.
---
.../sysds/runtime/codegen/LibSpoofPrimitives.java | 21 +++------------------
1 file changed, 3 insertions(+), 18 deletions(-)
diff --git
a/src/main/java/org/apache/sysds/runtime/codegen/LibSpoofPrimitives.java
b/src/main/java/org/apache/sysds/runtime/codegen/LibSpoofPrimitives.java
index bc6ba19895..ebb42676f0 100644
--- a/src/main/java/org/apache/sysds/runtime/codegen/LibSpoofPrimitives.java
+++ b/src/main/java/org/apache/sysds/runtime/codegen/LibSpoofPrimitives.java
@@ -109,27 +109,12 @@ public class LibSpoofPrimitives
}
}
else {
- //rest, not aligned to 4-blocks
- final int bn = len1%4;
- for( int i=0, cix=ci; i < bn; i++, cix+=len2 )
+ for( int i=0, cix=ci; i < len1; i++, cix+=len2)
if( a[ai+i] != 0 )
LibMatrixMult.vectMultiplyAdd(a[ai+i],
b, c, bi, cix, len2);
-
- //unrolled 4-block (for fewer L1-dcache loads)
- for( int i=bn, cix=ci+bn*len2; i < len1; i+=4,
cix+=4*len2 ) {
- final int cix1=cix, cix2=cix+len2,
cix3=cix+2*len2, cix4=cix+3*len2;
- final double aval1=a[ai+i], aval2=a[ai+i+1],
aval3=a[ai+i+2], aval4=a[ai+i+3];
- for( int j=0; j<len2; j++ ) {
- final double bval = b[bi+j];
- c[cix1 + j] += aval1 * bval;
- c[cix2 + j] += aval2 * bval;
- c[cix3 + j] += aval3 * bval;
- c[cix4 + j] += aval4 * bval;
- }
- }
- }
+ }
}
-
+
public static void vectOuterMultAdd(double[] a, double[] b, double[] c,
int[] aix, int ai, int bi, int ci, int alen, int len1, int len2) {
if( isFlipOuter(len1, len2) ) {
for( int i=0, cix=ci; i < len2; i++, cix+=len1 ) {
