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-rw-r--r--common/command.cc6
-rw-r--r--common/placer1.cc11
-rw-r--r--common/router1.cc4
-rw-r--r--common/timing.cc2
4 files changed, 20 insertions, 3 deletions
diff --git a/common/command.cc b/common/command.cc
index 6ba3442f..8f18f54d 100644
--- a/common/command.cc
+++ b/common/command.cc
@@ -124,6 +124,8 @@ po::options_description CommandHandler::getGeneralOptions()
general.add_options()("cstrweight", po::value<float>(), "placer weighting for relative constraint satisfaction");
general.add_options()("pack-only", "pack design only without placement or routing");
+ general.add_options()("ignore-loops", "ignore combinational loops in timing analysis");
+
general.add_options()("version,V", "show version");
general.add_options()("test", "check architecture database integrity");
general.add_options()("freq", po::value<double>(), "set target frequency for design in MHz");
@@ -172,6 +174,10 @@ void CommandHandler::setupContext(Context *ctx)
}
}
+ if (vm.count("ignore-loops")) {
+ settings->set("timing/ignoreLoops", true);
+ }
+
if (vm.count("cstrweight")) {
settings->set("placer1/constraintWeight", vm["cstrweight"].as<float>());
}
diff --git a/common/placer1.cc b/common/placer1.cc
index b42ef2ff..cec37847 100644
--- a/common/placer1.cc
+++ b/common/placer1.cc
@@ -24,6 +24,7 @@
#include "placer1.h"
#include <algorithm>
#include <boost/lexical_cast.hpp>
+#include <chrono>
#include <cmath>
#include <iostream>
#include <limits>
@@ -148,7 +149,7 @@ class SAPlacer
}
std::sort(autoplaced.begin(), autoplaced.end(), [](CellInfo *a, CellInfo *b) { return a->name < b->name; });
ctx->shuffle(autoplaced);
-
+ auto iplace_start = std::chrono::high_resolution_clock::now();
// Place cells randomly initially
log_info("Creating initial placement for remaining %d cells.\n", int(autoplaced.size()));
@@ -165,7 +166,9 @@ class SAPlacer
if (ctx->slack_redist_iter > 0)
assign_budget(ctx);
ctx->yield();
-
+ auto iplace_end = std::chrono::high_resolution_clock::now();
+ log_info("Initial placement time %.02fs\n", std::chrono::duration<float>(iplace_end - iplace_start).count());
+ auto saplace_start = std::chrono::high_resolution_clock::now();
log_info("Running simulated annealing placer.\n");
// Calculate metric after initial placement
@@ -283,6 +286,10 @@ class SAPlacer
// Let the UI show visualization updates.
ctx->yield();
}
+
+ auto saplace_end = std::chrono::high_resolution_clock::now();
+ log_info("SA placement time %.02fs\n", std::chrono::duration<float>(saplace_end - saplace_start).count());
+
// Final post-pacement validitiy check
ctx->yield();
for (auto bel : ctx->getBels()) {
diff --git a/common/router1.cc b/common/router1.cc
index cbc0df90..28a422c8 100644
--- a/common/router1.cc
+++ b/common/router1.cc
@@ -17,6 +17,7 @@
*
*/
+#include <chrono>
#include <cmath>
#include <queue>
@@ -752,6 +753,7 @@ bool router1(Context *ctx, const Router1Cfg &cfg)
log_break();
log_info("Routing..\n");
ctx->lock();
+ auto rstart = std::chrono::high_resolution_clock::now();
log_info("Setting up routing queue.\n");
@@ -803,7 +805,9 @@ bool router1(Context *ctx, const Router1Cfg &cfg)
router.arcs_with_ripup - last_arcs_with_ripup, router.arcs_without_ripup - last_arcs_without_ripup,
int(router.arc_queue.size()));
log_info("Routing complete.\n");
+ auto rend = std::chrono::high_resolution_clock::now();
ctx->yield();
+ log_info("Route time %.02fs\n", std::chrono::duration<float>(rend - rstart).count());
#ifndef NDEBUG
router.check();
diff --git a/common/timing.cc b/common/timing.cc
index 194a0e00..8a48b761 100644
--- a/common/timing.cc
+++ b/common/timing.cc
@@ -225,7 +225,7 @@ struct Timing
}
// Sanity check to ensure that all ports where fanins were recorded were indeed visited
- if (!port_fanin.empty()) {
+ if (!port_fanin.empty() && !bool_or_default(ctx->settings, ctx->id("timing/ignoreLoops"), false)) {
for (auto fanin : port_fanin) {
NetInfo *net = fanin.first->net;
if (net != nullptr) {