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enhanced TP scheduling

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This commit is contained in:
JanLJL
2020-07-06 18:49:46 +02:00
parent ce8c3ff9ab
commit 0e77b7bc9a
2 changed files with 22 additions and 5 deletions
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26
osaca/semantics/arch_semantics.py
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@@ -53,9 +53,15 @@ class ArchSemantics(ISASemantics):
) )
if len(set(port_sums)) > 1: if len(set(port_sums)) > 1:
# balance ports # balance ports
for _ in range(cycles * 100): # init list for keeping track of the current change
instr_ports[port_sums.index(max(port_sums))] -= INC differences = [cycles / len(ports) for p in ports]
instr_ports[port_sums.index(min(port_sums))] += INC for _ in range(int(cycles * (1 / INC))):
max_port_idx = port_sums.index(max(port_sums))
min_port_idx = port_sums.index(min(port_sums))
instr_ports[max_port_idx] -= INC
instr_ports[min_port_idx] += INC
differences[max_port_idx] -= INC
differences[min_port_idx] += INC
# instr_ports = [round(p, 2) for p in instr_ports] # instr_ports = [round(p, 2) for p in instr_ports]
self._itemsetter(*indices)(instruction_form['port_pressure'], *instr_ports) self._itemsetter(*indices)(instruction_form['port_pressure'], *instr_ports)
# check if min port is zero # check if min port is zero
@@ -63,7 +69,11 @@ class ArchSemantics(ISASemantics):
# if port_pressure is not exactly 0.00, add the residual to # if port_pressure is not exactly 0.00, add the residual to
# the former port # the former port
if min(instr_ports) != 0.0: if min(instr_ports) != 0.0:
instr_ports[port_sums.index(min(port_sums))] += min(instr_ports) min_port_idx = port_sums.index(min(port_sums))
instr_ports[min_port_idx] += min(instr_ports)
differences[min_port_idx] += min(instr_ports)
# we don't need to decrease difference for other port, just delete it
del differences[instr_ports.index(min(instr_ports))]
self._itemsetter(*indices)( self._itemsetter(*indices)(
instruction_form['port_pressure'], *instr_ports instruction_form['port_pressure'], *instr_ports
) )
@@ -80,6 +90,14 @@ class ArchSemantics(ISASemantics):
instr_ports = self._to_list( instr_ports = self._to_list(
itemgetter(*indices)(instruction_form['port_pressure']) itemgetter(*indices)(instruction_form['port_pressure'])
) )
# never remove more than the fixed utilization per uop and port, i.e., cycles/len(ports)
if round(min(differences), 2) <= 0:
# don't worry if port_pressure isn't exactly 0 and just
# remove from further balancing
indices = [p for p in indices if differences[indices.index(p)] > 0]
instr_ports = self._to_list(
itemgetter(*indices)(instruction_form['port_pressure'])
)
port_sums = self._to_list( port_sums = self._to_list(
itemgetter(*indices)(self.get_throughput_sum(kernel)) itemgetter(*indices)(self.get_throughput_sum(kernel))
) )

1
osaca/semantics/isa_semantics.py
View File

@@ -52,7 +52,6 @@ class ISASemantics(object):
return return
# check if instruction form is in ISA yaml, otherwise apply standard operand assignment # check if instruction form is in ISA yaml, otherwise apply standard operand assignment
# (one dest, others source) # (one dest, others source)
# import pdb; pdb.set_trace()
isa_data = self._isa_model.get_instruction( isa_data = self._isa_model.get_instruction(
instruction_form['instruction'], instruction_form['operands'] instruction_form['instruction'], instruction_form['operands']
) )