From 1fe410ea7fa1a0364dae16388cf0570420bb44f7 Mon Sep 17 00:00:00 2001 From: Ben Pfaff Date: Sun, 26 Sep 2004 02:33:38 +0000 Subject: [PATCH] Update comments. --- src/tests/userprog/matmult.c | 28 ++++++++++++++++------------ 1 file changed, 16 insertions(+), 12 deletions(-) diff --git a/src/tests/userprog/matmult.c b/src/tests/userprog/matmult.c index c30c05b..4f0615f 100644 --- a/src/tests/userprog/matmult.c +++ b/src/tests/userprog/matmult.c @@ -8,25 +8,29 @@ and store the result back to the file system! */ +#include #include -/* You should define this to be large enough that the arrays +/* You should define DIM to be large enough that the arrays don't fit in physical memory. Dim Memory ------ -------- 16 3 kB 64 48 kB + 128 192 kB 256 768 kB + 512 3,072 kB 1,024 12,288 kB + 2,048 49,152 kB 4,096 196,608 kB + 8,192 786,432 kB 16,384 3,145,728 kB */ +#define DIM 128 -#define Dim 1024 - -int A[Dim][Dim]; -int B[Dim][Dim]; -int C[Dim][Dim]; +int A[DIM][DIM]; +int B[DIM][DIM]; +int C[DIM][DIM]; int main (void) @@ -34,8 +38,8 @@ main (void) int i, j, k; /* Initialize the matrices. */ - for (i = 0; i < Dim; i++) - for (j = 0; j < Dim; j++) + for (i = 0; i < DIM; i++) + for (j = 0; j < DIM; j++) { A[i][j] = i; B[i][j] = j; @@ -43,11 +47,11 @@ main (void) } /* Multiply matrices. */ - for (i = 0; i < Dim; i++) - for (j = 0; j < Dim; j++) - for (k = 0; k < Dim; k++) + for (i = 0; i < DIM; i++) + for (j = 0; j < DIM; j++) + for (k = 0; k < DIM; k++) C[i][j] += A[i][k] * B[k][j]; /* Done. */ - exit (C[Dim - 1][Dim - 1]); + exit (C[DIM - 1][DIM - 1]); } -- 2.30.2