From add9cf9853c7338e271cbe6abfb0dee8f8db1e3b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=B1=9F=E5=92=8C=E6=9D=BE?=
 <32100330+Darkness303@users.noreply.github.com>
Date: Thu, 27 Feb 2020 21:28:12 +0800
Subject: [PATCH] Solve the problem of core dumped when using large-scale data
 in benchmark test

Segmentation fault (core dumped)
Because i+j*m has exceeded the maximum range of int
---
 benchmark/linpack.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/benchmark/linpack.c b/benchmark/linpack.c
index 7d5c87163..e4b20e99d 100644
--- a/benchmark/linpack.c
+++ b/benchmark/linpack.c
@@ -186,7 +186,7 @@ int main(int argc, char *argv[]){
 
     for(j = 0; j < m; j++){
       for(i = 0; i < m * COMPSIZE; i++){
-	a[i + j * m * COMPSIZE] = ((FLOAT) rand() / (FLOAT) RAND_MAX) - 0.5;
+	a[(long)i + (long)j * (long)m * COMPSIZE] = ((FLOAT) rand() / (FLOAT) RAND_MAX) - 0.5;
       }
     }
 
@@ -194,7 +194,7 @@ int main(int argc, char *argv[]){
 
     for (j = 0; j < m; ++j) {
       for (i = 0; i < m * COMPSIZE; ++i) {
-	b[i] += a[i + j * m * COMPSIZE];
+	b[i] += a[(long)i + (long)j * (long)m * COMPSIZE];
       }
     }