Skip to content

timeout for router1 #1495

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
wants to merge 2 commits into
base: master
Choose a base branch
from
+14 −2
Open

timeout for router1 #1495

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
496df84
timeout for router1
KelvinChung2000 May 23, 2025
de38bd3
Change the iter count based timeout
KelvinChung2000 May 23, 2025
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
6 changes: 6 additions & 0 deletions common/kernel/command.cc
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -396,6 +396,8 @@ po::options_description CommandHandler::getGeneralOptions()
general.add_options()("parallel-refine", "use new experimental parallelised engine for placement refinement");
#endif

general.add_options()("router1-timeout", po::value<int>(), "Timeout for router1 in iteration count (default: 0, no timeout)");

general.add_options()("router2-heatmap", po::value<std::string>(),
"prefix for router2 resource congestion heatmaps");

Expand Down Expand Up @@ -538,6 +540,10 @@ void CommandHandler::setupContext(Context *ctx)
if (vm.count("parallel-refine"))
ctx->settings[ctx->id("placerHeap/parallelRefine")] = true;

if (vm.count("router1-timeout")) {
ctx->settings[ctx->id("router1/maxIterCnt")] = std::to_string(std::max(0, vm["router1-timeout"].as<int>()));
}

if (vm.count("router2-heatmap"))
ctx->settings[ctx->id("router2/heatmap")] = vm["router2-heatmap"].as<std::string>();
if (vm.count("tmg-ripup") || vm.count("router2-tmg-ripup"))
Expand Down
10 changes: 8 additions & 2 deletions common/route/router1.cc
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -1146,7 +1146,7 @@ NEXTPNR_NAMESPACE_BEGIN

Router1Cfg::Router1Cfg(Context *ctx)
{
maxIterCnt = ctx->setting<int>("router1/maxIterCnt", 200);
maxIterCnt = ctx->setting<int>("router1/maxIterCnt", 0);
cleanupReroute = ctx->setting<bool>("router1/cleanupReroute", true);
fullCleanupReroute = ctx->setting<bool>("router1/fullCleanupReroute", true);
useEstimate = ctx->setting<bool>("router1/useEstimate", true);
Expand Down Expand Up @@ -1199,11 +1199,17 @@ bool router1(Context *ctx, const Router1Cfg &cfg)
last_arcs_with_ripup = router.arcs_with_ripup;
last_arcs_without_ripup = router.arcs_without_ripup;
ctx->yield();

#ifndef NDEBUG
router.check();
#endif
}

if (cfg.maxIterCnt){
if (iter_cnt > cfg.maxIterCnt) {
log_error("Max iteration count reached, stopping routing.\n");
}
}

if (ctx->debug)
log("-- %d --\n", iter_cnt);

Expand Down