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Signed-off-by: David Shah <davey1576@gmail.com>
This commit is contained in:
David Shah 2018-08-04 08:18:04 +02:00
parent 176a23936c
commit 082b8bf272
5 changed files with 14 additions and 14 deletions
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7
common/place_common.cc
View File

@ -156,7 +156,8 @@ bool place_single_cell(Context *ctx, CellInfo *cell, bool require_legality)
all_placed = true;
}
if (ctx->verbose)
log_info(" placed single cell '%s' at '%s'\n", cell->name.c_str(ctx), ctx->getBelName(best_bel).c_str(ctx));
log_info(" placed single cell '%s' at '%s'\n", cell->name.c_str(ctx),
ctx->getBelName(best_bel).c_str(ctx));
ctx->bindBel(best_bel, cell->name, STRENGTH_WEAK);
cell = ripup_target;
@ -452,7 +453,6 @@ class ConstraintLegaliseWorker
}
}
bool legalise_constraints()
{
log_info("Legalising relative constraints...\n");
@ -472,8 +472,7 @@ class ConstraintLegaliseWorker
for (auto rippedCell : rippedCells) {
bool res = place_single_cell(ctx, ctx->cells.at(rippedCell).get(), true);
if (!res) {
log_error("failed to place cell '%s' after relative constraint legalisation\n",
rippedCell.c_str(ctx));
log_error("failed to place cell '%s' after relative constraint legalisation\n", rippedCell.c_str(ctx));
return false;
}
}

14
common/placer1.cc
View File

@ -45,7 +45,7 @@ NEXTPNR_NAMESPACE_BEGIN
class SAPlacer
{
public:
public:
SAPlacer(Context *ctx, Placer1Cfg cfg) : ctx(ctx), cfg(cfg)
{
int num_bel_types = 0;
@ -60,11 +60,11 @@ public:
type_idx = bel_types.at(type);
}
if (int(fast_bels.size()) < type_idx + 1)
fast_bels.resize(type_idx + 1);
fast_bels.resize(type_idx + 1);
if (int(fast_bels.at(type_idx).size()) < (loc.x + 1))
fast_bels.at(type_idx).resize(loc.x + 1);
fast_bels.at(type_idx).resize(loc.x + 1);
if (int(fast_bels.at(type_idx).at(loc.x).size()) < (loc.y + 1))
fast_bels.at(type_idx).at(loc.x).resize(loc.y + 1);
fast_bels.at(type_idx).at(loc.x).resize(loc.y + 1);
max_x = std::max(max_x, loc.x);
max_y = std::max(max_y, loc.y);
fast_bels.at(type_idx).at(loc.x).at(loc.y).push_back(bel);
@ -281,7 +281,7 @@ public:
return true;
}
private:
private:
// Initial random placement
void place_initial(CellInfo *cell)
{
@ -290,7 +290,7 @@ private:
while (!all_placed) {
BelId best_bel = BelId();
uint64_t best_score = std::numeric_limits<uint64_t>::max(),
best_ripup_score = std::numeric_limits<uint64_t>::max();
best_ripup_score = std::numeric_limits<uint64_t>::max();
CellInfo *ripup_target = nullptr;
BelId ripup_bel = BelId();
if (cell->bel != BelId()) {
@ -410,7 +410,7 @@ private:
metrics.at(new_wl.first) = new_wl.second;
return true;
swap_fail:
swap_fail:
ctx->bindBel(oldBel, cell->name, STRENGTH_WEAK);
if (other != IdString()) {
ctx->bindBel(newBel, other, STRENGTH_WEAK);

3
ice40/arch.cc
View File

@ -659,7 +659,8 @@ delay_t Arch::getBudgetOverride(const NetInfo *net_info, const PortRef &sink, de
// -----------------------------------------------------------------------
bool Arch::place() {
bool Arch::place()
{
Placer1Cfg cfg;
cfg.constraintWeight = placer_constraintWeight;
return placer1(getCtx(), cfg);

1
ice40/arch.h
View File

@ -799,7 +799,6 @@ struct Arch : BaseCtx
}
float placer_constraintWeight = 10;
};
NEXTPNR_NAMESPACE_END

3
ice40/main.cc
View File

@ -106,7 +106,8 @@ int main(int argc, char *argv[])
options.add_options()("seed", po::value<int>(), "seed value for random number generator");
options.add_options()("slack_redist_iter", po::value<int>(),
"number of iterations between slack redistribution");
options.add_options()("cstrweight", po::value<float>(), "placer weighting for relative constraint satisfaction");
options.add_options()("cstrweight", po::value<float>(),
"placer weighting for relative constraint satisfaction");
options.add_options()("version,V", "show version");
options.add_options()("tmfuzz", "run path delay estimate fuzzer");