From fb74a77a3986b7692bdcc685453e59279288f743 Mon Sep 17 00:00:00 2001
From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Sun, 9 Mar 2014 19:36:27 +0000
Subject: [PATCH] multicore worker only print read matrix input every second

---
 main.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/main.c b/main.c
index b38b0ce..3f52a86 100644
--- a/main.c
+++ b/main.c
@@ -263,6 +263,8 @@ static void multicore_outer_iteration(int i, AdjWord min) {
 }
 
 static void mc_iterate_worker(void) {
+  static time_t lastprint;
+
   for (;;) {
     mc_rwvsetup_outer();
     ssize_t r = readv(mc_work[0], mc_iov, mc_niovs);
@@ -272,8 +274,12 @@ static void mc_iterate_worker(void) {
     bool ok = maxhamweight_ok();
     if (!ok) continue;
 
-    ok = preconsider_ok(multicore_iteration_boundary, 1);
-    progress_eol();
+    time_t now = time(0);
+    bool doprint = now != lastprint;
+    lastprint = now;
+
+    ok = preconsider_ok(multicore_iteration_boundary, doprint);
+    if (doprint) progress_eol();
     if (!ok) continue;
 
     /* stop iterate_recurse from trying to run multicore_outer_iteration */
-- 
2.30.2