From b4ea7500fb5ccc11a9c5cc1280d2da40983ece6f 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 21:35:30 +0800 Subject: [PATCH] Solve the problem of core dumped when using large-scale data in benchmark test MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit E.g ： when running test calse such as below in benchmark: ./dgemv.goto 100000 100000 100000 From : 100000 To : 100000 Step = 100000 Side = L Uplo = U SIZE Flops 100000 :Segmentation fault (core dumped) Because i+j*m has exceeded the maximum range of int --- benchmark/symm.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/benchmark/symm.c b/benchmark/symm.c index 35ebcee97..9c26d92fe 100644 --- a/benchmark/symm.c +++ b/benchmark/symm.c @@ -175,9 +175,9 @@ 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; - b[i + j * m * COMPSIZE] = ((FLOAT) rand() / (FLOAT) RAND_MAX) - 0.5; - c[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; + b[(long)i + (long)j * (long)m * COMPSIZE] = ((FLOAT) rand() / (FLOAT) RAND_MAX) - 0.5; + c[(long)i + (long)j * (long)m * COMPSIZE] = ((FLOAT) rand() / (FLOAT) RAND_MAX) - 0.5; } }