Add data loader

task1/CMakeLists.txt

@@ -38,7 +38,13 @@ add_executable(task1-randgen)
 target_sources(task1-randgen PRIVATE
         src/task1-randgen.cpp)
 target_link_libraries(task1-randgen PRIVATE
-        fmt::fmt
+        Qt6::Core)
+
+# Add task1 target with an C++ written QT-based mergesort
+add_executable(task1-sorter)
+target_sources(task1-sorter PRIVATE
+        src/task1-sorter.cpp)
+target_link_libraries(task1-sorter PRIVATE
         Qt6::Core)
 
 # Define install options

task1/src/task1-randgen.cpp

@@ -5,10 +5,7 @@
 #include <QFileInfo>
 
 #include <cmath>
-#include <random>
-#include <fstream>
 #include <ranges>
-#include "fmt/format.h"
 
 
 int main(int argc, char *argv[]) {
@@ -26,14 +23,14 @@ int main(int argc, char *argv[]) {
 
     const QStringList args = parser.positionalArguments();
 
-    if(args.length() != 2) {
+    if (args.length() != 2) {
         parser.showHelp(-1);
     }
 
     const QString dest = args.at(0);
     bool convOK;
     const int pow_value = args.at(1).toInt(&convOK);
-    if(!convOK) {
+    if (!convOK) {
         parser.showHelp(-1);
     }
 
@@ -57,7 +54,8 @@ int main(int argc, char *argv[]) {
     file.flush();
 
     QFileInfo finfo(file);
-    print << "Wrote " << num_values << " to " << dest << " with resulting size of " << (finfo.size()/1000000) << " mb" << Qt::endl;
+    print << "Wrote " << num_values << " to " << dest << " with resulting size of " << (finfo.size() / 1000000) << " mb"
+          << Qt::endl;
     file.close();
 
 

task1/src/task1-sorter.cpp

@@ -0,0 +1,56 @@
+#include <QRandomGenerator>
+#include <QCommandLineParser>
+#include <QCoreApplication>
+#include <QFile>
+#include <QFileInfo>
+
+#include <cmath>
+#include <thread>
+#include <ranges>
+
+int main(int argc, char *argv[]) {
+    QCoreApplication app(argc, argv);
+    QCoreApplication::setApplicationName("Multi purpose mergesort application");
+    QCoreApplication::setApplicationVersion("1.0.42");
+    QTextStream print(stdout);
+
+
+    QCommandLineParser parser;
+    parser.setApplicationDescription("Used to run either sequential or parallel mergesort on a texfile containing ascii encoded int32s");
+    parser.addHelpOption();
+    parser.addVersionOption();
+
+    QCommandLineOption sequential("S", "Run sequential sort on dataset");
+    QCommandLineOption parallel("P", "Run parallel sort on dataset");
+    QCommandLineOption nthreads(QStringList() << "d" << "depth", "Recursion depth of parallel part", "nthreads");
+    QCommandLineOption output(QStringList() << "o", "output", "File to write the sorted dataset to");
+
+    parser.addOption(sequential);
+    parser.addOption(parallel);
+    parser.addOption(nthreads);
+
+    parser.addPositionalArgument("dataset", "Filename where to load the data from");
+
+    parser.process(app);
+
+    const int threads = std::thread::hardware_concurrency();
+    int max_depth = std::sqrt(threads);
+
+    print << "Hardware concurrency of " << threads << " detected" << Qt::endl;
+
+    if(parser.isSet(nthreads)) {
+        bool ok;
+        max_depth = parser.value(nthreads).toInt(&ok);
+        if(!ok) {
+            parser.showHelp(-1);
+        }
+        print << "Overwriting maximum parallelized recursion depth with " << max_depth << Qt::endl;
+    } else {
+        print << "Assuming default parallelized recursion depth via sqrt(nthreads) of " << max_depth << Qt::endl;
+    }
+
+
+
+    app.exit(0);
+    return 0;
+}