# HG changeset patch
# User Arun Giridhar <arungiridhar@gmail.com>
# Date 1663163971 14400
# Node ID 0dec459a40643742402518e089894ea099714b15
# Parent  44cf6bbeeca91d028c74a3737b3916d5f23ba0a2
sparse-xpow.cc: Performance tweak for threshold selection

diff -r 44cf6bbeeca9 -r 0dec459a4064 libinterp/corefcn/sparse-xpow.cc
--- a/libinterp/corefcn/sparse-xpow.cc	Mon Sep 12 05:35:48 2022 -0400
+++ b/libinterp/corefcn/sparse-xpow.cc	Wed Sep 14 09:59:31 2022 -0400
@@ -132,9 +132,8 @@
       // FIXME: Improve this threshold calculation.
 
       uint64_t sparsity = atmp.numel() / atmp.nnz(); // reciprocal of density
-      int threshold = (sparsity >= 10000) ? 40
-                    : (sparsity >=  1000) ? 30
-                    : (sparsity >=   100) ? 20
+      int threshold = (sparsity >= 1000) ? 40
+                    : (sparsity >=  100) ? 20
                     : 3;
 
       if (btmp > threshold) // use squaring technique
@@ -220,9 +219,8 @@
       // FIXME: Improve this threshold calculation.
 
       uint64_t sparsity = atmp.numel() / atmp.nnz(); // reciprocal of density
-      int threshold = (sparsity >= 10000) ? 40
-                    : (sparsity >=  1000) ? 30
-                    : (sparsity >=   100) ? 20
+      int threshold = (sparsity >= 1000) ? 40
+                    : (sparsity >=  100) ? 20
                     : 3;
 
       if (btmp > threshold) // use squaring technique