From 755185ca2641190eec80ab739accd76dc0988b1d Mon Sep 17 00:00:00 2001
From: Michael Zhang <mail@mzhang.io>
Date: Sat, 25 Nov 2023 01:32:19 -0600
Subject: [PATCH] modif

---
 assignments/03/Makefile | 20 ++++++++++----------
 assignments/03/lpa.cpp  | 18 ++++++++++++------
 2 files changed, 22 insertions(+), 16 deletions(-)

diff --git a/assignments/03/Makefile b/assignments/03/Makefile
index bd871c1..912753f 100644
--- a/assignments/03/Makefile
+++ b/assignments/03/Makefile
@@ -1,18 +1,15 @@
 .PHONY: run clean
 
-CFLAGS += -g -O3
-CFLAGS += -DFMT_HEADER_ONLY 
-LDFLAGS += $(shell pkg-config --libs fmt)
-
-clean:
-	rm -f lpa
-
-lpac: lpa.cpp
-	mpicc $(CFLAGS) $(LDFLAGS) -o $@ $<
+CFLAGS += -g
+# CFLAGS += -DFMT_HEADER_ONLY -O3
+# LDFLAGS += $(shell pkg-config --libs fmt)
 
 lpa: lpa.cpp Makefile test.gdb
 	mpic++ $(CFLAGS) $(LDFLAGS) -o $@ lpa.cpp
 
+lpac: lpa.cpp
+	mpicc $(CFLAGS) $(LDFLAGS) -o $@ $<
+
 run:
 	watchexec -c clear 'make lpa && mpirun -n 4 ./lpa dataset/both_1000.txt'
 
@@ -23,4 +20,7 @@ zhan4854.tar.gz: Makefile ASSIGNMENT.md lpa.cpp report.pdf
 	mkdir -p zhan4854
 	cp $^ zhan4854
 	tar -czvf $@ zhan4854
-	rm -r zhan4854
\ No newline at end of file
+	rm -r zhan4854
+
+clean:
+	rm -f lpa
diff --git a/assignments/03/lpa.cpp b/assignments/03/lpa.cpp
index 695a6ab..1042a31 100644
--- a/assignments/03/lpa.cpp
+++ b/assignments/03/lpa.cpp
@@ -14,8 +14,8 @@
 #include <unistd.h>
 #include <utility>
 
-#include <fmt/format.h>
-#include <fmt/ranges.h>
+// #include <fmt/format.h>
+// #include <fmt/ranges.h>
 
 #define TAG_SEND_NUM_EDGES 1001
 #define TAG_SEND_EDGES 1002
@@ -161,7 +161,9 @@ int main(int argc, char **argv) {
 
   // STEP 2 TIMER STARTS HERE
   MPI_Barrier(MPI_COMM_WORLD);
-  double step_2_start_time = MPI_Wtime();
+  double step_2_start_time;
+  if (rank == 0)
+  step_2_start_time = MPI_Wtime();
 
 // Each process analyzes the non-local edges that are contained in its portion
 // of the graph.
@@ -221,7 +223,9 @@ int main(int argc, char **argv) {
 
   // STEP 5 TIMER STARTS HERE
   MPI_Barrier(MPI_COMM_WORLD);
-  double step_5_start_time = MPI_Wtime();
+  double step_5_start_time;
+  if (rank == 0)
+  step_5_start_time = MPI_Wtime();
 
 // The processes perform the transfers of non-local labels and  updates of
 // local labels until convergence.
@@ -311,7 +315,9 @@ int main(int argc, char **argv) {
 
   // END TIMERS
   MPI_Barrier(MPI_COMM_WORLD);
-  double end_time = MPI_Wtime();
+  double end_time;
+  if (rank == 0)
+  end_time = MPI_Wtime();
 
   if (rank == 0) {
     printf("2-5 Time: %0.04fs\n", end_time - step_2_start_time);
@@ -431,4 +437,4 @@ int lookup_assignment(int *base_node_assignment, pair my_node_range,
 
   // Pull the corresponding value from the map
   return recvbuf[recv_displs[process_from] + index];
-}
\ No newline at end of file
+}