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fix pgates binning off-by-one

This commit is contained in:
jcirimel 2020-04-15 04:09:58 -07:00
parent 5f4ed47c57
commit 6c1c72c520
1 changed files with 6 additions and 6 deletions
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12
compiler/pgates/pgate.py
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@ -300,24 +300,24 @@ class pgate(design.design):
bins = bins[0:bisect_left(bins, target_width) + 1] bins = bins[0:bisect_left(bins, target_width) + 1]
if len(bins) == 1: if len(bins) == 1:
selected_bin = bins[0] selected_bin = bins[0]
scaling_factor = 1 scaling_factor = math.ceil(target_width / width)
scaled_bin = bins[0] scaled_bin = bins[0] * scaling_factor
else: else:
scaled_bins = [] scaled_bins = []
scaling_factors = [] scaling_factors = []
scaled_bins.append(bins[-1])
scaling_factors.append(1)
for width in bins[0:-1]: for width in bins[0:-1]:
m = math.ceil(target_width / width) m = math.ceil(target_width / width)
scaling_factors.append(m) scaling_factors.append(m)
scaled_bins.append(m * width) scaled_bins.append(m * width)
scaled_bins.append(bins[-1])
scaling_factors.append(1)
select = bisect_left(scaled_bins, target_width) select = bisect_left(scaled_bins, target_width)
selected_bin = bins[select]
scaling_factor = scaling_factors[select] scaling_factor = scaling_factors[select]
scaled_bin = scaled_bins[select] scaled_bin = scaled_bins[select]
select = (select + 1) % len(scaled_bins)
selected_bin = bins[select]
debug.info(2, "binning {0} tx, target: {4}, found {1} x {2} = {3}".format(tx_type, selected_bin, scaling_factor, scaled_bin, target_width)) debug.info(2, "binning {0} tx, target: {4}, found {1} x {2} = {3}".format(tx_type, selected_bin, scaling_factor, scaled_bin, target_width))