From 12addefb351a73d25c61a4722ee308a3311727c5 Mon Sep 17 00:00:00 2001
From: kai <k.penazzi@web.de>
Date: Tue, 6 May 2025 13:24:04 +0200
Subject: [PATCH 1/3] add benchmark

---
 lab07/gaus_seidel/gaus_seidel.cpp | 31 ++++++++++++-------------------
 1 file changed, 12 insertions(+), 19 deletions(-)

diff --git a/lab07/gaus_seidel/gaus_seidel.cpp b/lab07/gaus_seidel/gaus_seidel.cpp
index b7281bb..4de0978 100644
--- a/lab07/gaus_seidel/gaus_seidel.cpp
+++ b/lab07/gaus_seidel/gaus_seidel.cpp
@@ -1,4 +1,5 @@
 #include "matrix.h"
+#include <benchmark/benchmark.h>
 #include <iostream>
 #include <omp.h>
 
@@ -25,7 +26,7 @@ void gauss_seidel_par(Matrix &phi, int maxNumIter) {
   const double osth = 1. / 4;
 
   for (int iter = 0; iter < maxNumIter; ++iter) {
-#pragma omp parallel num_threads(3)
+#pragma omp parallel num_threads(10)
     {
       int num_theads = omp_get_num_threads();
       int chunk = (m - 2) / num_theads;
@@ -95,23 +96,15 @@ void print_matrix(const Matrix &matrix) {
   }
 }
 
-int main() {
-  Matrix first = Matrix(8, 8);
-  Matrix sec = Matrix(8, 8);
+void benchmarkgaus_seidel(benchmark::State &state) {
+  Matrix matrix = Matrix(1000, 1000);
+  fill_matrix(matrix, 10);
 
-  fill_matrix(first, 10);
-  fill_matrix(sec, 10);
-
-  print_matrix(first);
-  print_matrix(sec);
-
-  gauss_seidel(first, 12);
-  gauss_seidel_par(sec, 12);
-
-  check(first, sec);
-
-  print_matrix(first);
-  print_matrix(sec);
-
-  return 0;
+  for (auto _ : state) {
+    gauss_seidel(matrix, 10000);
+    benchmark::DoNotOptimize(matrix);
+  }
 }
+
+BENCHMARK(benchmarkgaus_seidel)->Unit(benchmark::kMillisecond);
+BENCHMARK_MAIN();

From ee2efe938a9c171b776c950907de7db065010e73 Mon Sep 17 00:00:00 2001
From: kai <k.penazzi@web.de>
Date: Tue, 6 May 2025 13:27:42 +0200
Subject: [PATCH 2/3] add benchmark

---
 lab07/gaus_seidel/gaus_seidel.cpp | 21 +++++++++++++++++----
 1 file changed, 17 insertions(+), 4 deletions(-)

diff --git a/lab07/gaus_seidel/gaus_seidel.cpp b/lab07/gaus_seidel/gaus_seidel.cpp
index 4de0978..72b4f81 100644
--- a/lab07/gaus_seidel/gaus_seidel.cpp
+++ b/lab07/gaus_seidel/gaus_seidel.cpp
@@ -96,15 +96,28 @@ void print_matrix(const Matrix &matrix) {
   }
 }
 
-void benchmarkgaus_seidel(benchmark::State &state) {
+void benchmarkComputeResult(benchmark::State &state) {
+  int iterations = state.range(0);
   Matrix matrix = Matrix(1000, 1000);
+
   fill_matrix(matrix, 10);
 
   for (auto _ : state) {
-    gauss_seidel(matrix, 10000);
+    gauss_seidel(sec, iterations);
     benchmark::DoNotOptimize(matrix);
   }
 }
 
-BENCHMARK(benchmarkgaus_seidel)->Unit(benchmark::kMillisecond);
-BENCHMARK_MAIN();
+int main(int argc, char** argv)) {
+  ::benchmark::Initialize(&argc, argv);
+
+  for (int iterations = 0; iterations < 10000; iterations++) {
+    benchmark::RegisterBenchmark("bench_gaus_seidel", benchmarkComputeResult)
+        ->Arg(iterations)
+        ->Unit(benchmark::kMillisecond);
+  }
+
+  ::benchmark::RunSpecifiedBenchmarks();
+
+  return 0;
+}

From 15e7705c45d8d0c86f7a99b549952ee3d4d7f1e0 Mon Sep 17 00:00:00 2001
From: kai <k.penazzi@web.de>
Date: Tue, 6 May 2025 13:28:17 +0200
Subject: [PATCH 3/3] fix

---
 lab07/gaus_seidel/gaus_seidel.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lab07/gaus_seidel/gaus_seidel.cpp b/lab07/gaus_seidel/gaus_seidel.cpp
index 72b4f81..ebfc817 100644
--- a/lab07/gaus_seidel/gaus_seidel.cpp
+++ b/lab07/gaus_seidel/gaus_seidel.cpp
@@ -103,12 +103,12 @@ void benchmarkComputeResult(benchmark::State &state) {
   fill_matrix(matrix, 10);
 
   for (auto _ : state) {
-    gauss_seidel(sec, iterations);
+    gauss_seidel(matrix, iterations);
     benchmark::DoNotOptimize(matrix);
   }
 }
 
-int main(int argc, char** argv)) {
+int main(int argc, char **argv) {
   ::benchmark::Initialize(&argc, argv);
 
   for (int iterations = 0; iterations < 10000; iterations++) {