timer

assignments/03/.gitignore

@@ -1,3 +1,4 @@
 lpa
 compile_commands.json
 .cache
+report.pdf

assignments/03/Makefile

@@ -4,10 +4,19 @@ CFLAGS += -DFMT_HEADER_ONLY
 LDFLAGS += $(shell pkg-config --libs fmt)
 
 clean:
-	rm lpa
+	rm -f lpa
 
 lpa: lpa.cpp
 	mpic++ $(CFLAGS) $(LDFLAGS) -o $@ -g $<
 
 run:
 	watchexec -c clear 'make lpa && mpirun -n 4 ./lpa dataset/both_1000.txt'
+
+report.pdf: report.typ
+	typst compile $< $@
+
+zhan4854.tar.gz: Makefile ASSIGNMENT.md lpa.cpp report.pdf
+	mkdir -p zhan4854
+	cp $^ zhan4854
+	tar -czvf $@ zhan4854
+	rm -r zhan4854

assignments/03/lpa.cpp

@@ -14,8 +14,8 @@
 #include <unistd.h>
 #include <utility>
 
-#include <fmt/format.h>
+// #include <fmt/format.h>
-#include <fmt/ranges.h>
+// #include <fmt/ranges.h>
 
 #define TAG_SEND_NUM_EDGES 1001
 #define TAG_SEND_EDGES 1002
@@ -154,6 +154,10 @@ int main(int argc, char **argv) {
   }
 #pragma endregion
 
+  // STEP 2 TIMER STARTS HERE
+  MPI::COMM_WORLD.Barrier();
+  double step_2_start_time = MPI::Wtime();
+
 // Each process analyzes the non-local edges that are contained in its portion
 // of the graph.
 #pragma region
@@ -209,6 +213,10 @@ int main(int argc, char **argv) {
 #pragma region
 #pragma endregion
 
+  // STEP 5 TIMER STARTS HERE
+  MPI::COMM_WORLD.Barrier();
+  double step_5_start_time = MPI::Wtime();
+
 // The processes perform the transfers of non-local labels and  updates of
 // local labels until convergence.
 #pragma region
@@ -289,9 +297,9 @@ int main(int argc, char **argv) {
     int total_changes;
     MPI::COMM_WORLD.Allreduce(&num_changes, &total_changes, 1, MPI_INT,
                               MPI::SUM);
-    std::cout << fmt::format("[{}] # updates: {} ({})", rank, num_changes,
+    // std::cout << fmt::format("[{}] # updates: {} ({})", rank, num_changes,
-                             total_changes)
+    //                          total_changes)
-              << std::endl;
+    //           << std::endl;
 
     if (total_changes == 0) {
       break;
@@ -304,6 +312,13 @@ int main(int argc, char **argv) {
   }
 #pragma endregion
 
+  // END TIMERS
+  MPI::COMM_WORLD.Barrier();
+  double end_time = MPI::Wtime();
+
+  printf("2-5 Time: %0.04fs\n", end_time - step_2_start_time);
+  printf("5 Time: %0.04fs\n", end_time - step_5_start_time);
+
 // The results are gathered to a single process, which writes them to the
 // disk.
 #pragma region