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add bin heuristic and handle nan

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liulixinkerry 2024-04-23 12:16:11 +08:00
parent 8db7d4f549
commit ae6644aabd
3 changed files with 20 additions and 1 deletions
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2
src/core/route_force.py
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@ -259,7 +259,7 @@ def run_gr_and_fft_main(
def run_gr_and_fft(args, logger, data, rawdb, gpdb, ps, grdb=None, skip_m1_route=True, run_fft=False, visualize=False, report_gr_metrics_only=False, given_gr_params={}): def run_gr_and_fft(args, logger, data, rawdb, gpdb, ps, grdb=None, skip_m1_route=True, run_fft=False, visualize=False, report_gr_metrics_only=False, given_gr_params={}):
route_size = 512 route_size = min(512, args.num_bin_y)
iteration = ps.iter - 1 # ps.iter is increased before running GR optimization iteration = ps.iter - 1 # ps.iter is increased before running GR optimization
die_ratio = (data.__ori_die_hx__ - data.__ori_die_lx__) / (data.__ori_die_hy__ - data.__ori_die_ly__) die_ratio = (data.__ori_die_hx__ - data.__ori_die_lx__) / (data.__ori_die_hy__ - data.__ori_die_ly__)
route_xSize = route_size if die_ratio <= 1 else round(route_size / die_ratio) route_xSize = route_size if die_ratio <= 1 else round(route_size / die_ratio)

11
src/database.py
View File

@ -166,6 +166,17 @@ class PlaceData(object):
self.__num_pins__ = pin_id2node_id.shape[0] self.__num_pins__ = pin_id2node_id.shape[0]
self.__num_nets__ = hyperedge_list_end.shape[0] self.__num_nets__ = hyperedge_list_end.shape[0]
if self.__ori_die_hy__ / self.__row_height__ < args.num_bin_y:
num_rows = math.floor(self.__ori_die_hy__ / self.__row_height__)
new_num_bin_y = int(2 ** math.floor(math.log2(num_rows)))
new_num_bin_x = int(round(args.num_bin_x / args.num_bin_y * new_num_bin_y))
logger.warning(
"Given num_bin_y %d is larger than num_rows %d."
"Use (num_bin_x=%d, num_bin_y=%d) instead" %
(args.num_bin_y, num_rows, new_num_bin_x, new_num_bin_y)
)
args.num_bin_x = new_num_bin_x
args.num_bin_y = new_num_bin_y
self.__num_bin_x__ = args.num_bin_x self.__num_bin_x__ = args.num_bin_x
self.__num_bin_y__ = args.num_bin_y self.__num_bin_y__ = args.num_bin_y

8
src/param_scheduler.py
View File

@ -403,6 +403,14 @@ class ParamScheduler:
and self.recorder.hpwl[ptr] > self.best_metric["hpwl"] * 2 and self.recorder.hpwl[ptr] > self.best_metric["hpwl"] * 2
): ):
return True return True
if (
math.isnan(self.recorder.overflow[ptr]) or
math.isnan(self.recorder.hpwl[ptr])
):
self.__logger__.warning(
"Detect NAN value in Iteration %d. Kill the optimization process." % ptr
)
return True
return False return False
def check_plateau(self, x, window=10, threshold=0.001): def check_plateau(self, x, window=10, threshold=0.001):