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import sys
from b_asic.core_operations import (
MADS,
Addition,
Butterfly,
ConstantMultiplication,
Reciprocal,
)
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from b_asic.list_schedulers import (
HybridScheduler,
LeastSlackTimeScheduler,
MaxFanOutScheduler,
from b_asic.sfg_generators import (
direct_form_1_iir,
ldlt_matrix_inverse,
radix_2_dif_fft,
)
from b_asic.special_operations import Input, Output
class TestEarliestDeadlineScheduler:
def test_empty_sfg(self, sfg_empty):
with pytest.raises(
ValueError, match="Empty signal flow graph cannot be scheduled."
):
Schedule(sfg_empty, scheduler=EarliestDeadlineScheduler())
sfg = direct_form_1_iir([1, 2, 3], [1, 2, 3])
sfg.set_latency_of_type(ConstantMultiplication.type_name(), 2)
sfg.set_execution_time_of_type(ConstantMultiplication.type_name(), 1)
sfg.set_latency_of_type(Addition.type_name(), 3)
sfg.set_execution_time_of_type(Addition.type_name(), 1)
resources = {
Addition.type_name(): 1,
ConstantMultiplication.type_name(): 1,
Input.type_name(): sys.maxsize,
Output.type_name(): sys.maxsize,
}
schedule = Schedule(
sfg, scheduler=EarliestDeadlineScheduler(max_resources=resources)
)
assert schedule.start_times == {
"in0": 0,
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"cmul3": 0,
"cmul4": 1,
"cmul0": 2,
"add1": 3,
"cmul1": 3,
"cmul2": 4,
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"add0": 6,
"add3": 7,
"add2": 10,
"out0": 13,
}
assert schedule.schedule_time == 13
def test_direct_form_2_iir_1_add_1_mul(self, sfg_direct_form_iir_lp_filter):
sfg_direct_form_iir_lp_filter.set_latency_of_type(
ConstantMultiplication.type_name(), 3
)
sfg_direct_form_iir_lp_filter.set_latency_of_type(Addition.type_name(), 2)
sfg_direct_form_iir_lp_filter.set_execution_time_of_type(
ConstantMultiplication.type_name(), 1
)
sfg_direct_form_iir_lp_filter.set_execution_time_of_type(
Addition.type_name(), 1
)
resources = {
Addition.type_name(): 1,
ConstantMultiplication.type_name(): 1,
Input.type_name(): sys.maxsize,
Output.type_name(): sys.maxsize,
}
schedule = Schedule(
sfg_direct_form_iir_lp_filter,
scheduler=EarliestDeadlineScheduler(resources),
"in0": 0,
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"cmul3": 0,
"cmul4": 1,
"cmul1": 2,
"cmul2": 3,
"add1": 4,
"add0": 6,
"add3": 7,
"cmul0": 8,
"add2": 11,
"out0": 13,
}
assert schedule.schedule_time == 13
def test_direct_form_2_iir_2_add_3_mul(self, sfg_direct_form_iir_lp_filter):
sfg_direct_form_iir_lp_filter.set_latency_of_type(
ConstantMultiplication.type_name(), 3
)
sfg_direct_form_iir_lp_filter.set_latency_of_type(Addition.type_name(), 2)
sfg_direct_form_iir_lp_filter.set_execution_time_of_type(
ConstantMultiplication.type_name(), 1
)
sfg_direct_form_iir_lp_filter.set_execution_time_of_type(
Addition.type_name(), 1
)
resources = {
Addition.type_name(): 2,
ConstantMultiplication.type_name(): 3,
Input.type_name(): sys.maxsize,
Output.type_name(): sys.maxsize,
}
schedule = Schedule(
sfg_direct_form_iir_lp_filter,
scheduler=EarliestDeadlineScheduler(resources),
"in0": 0,
"cmul1": 0,
"cmul4": 0,
"cmul3": 0,
"cmul2": 1,
"add1": 3,
"add3": 4,
"add0": 5,
"cmul0": 7,
"add2": 10,
"out0": 12,
}
assert schedule.schedule_time == 12
def test_radix_2_fft_8_points(self):
sfg = radix_2_dif_fft(points=8)
sfg.set_latency_of_type(ConstantMultiplication.type_name(), 2)
sfg.set_execution_time_of_type(ConstantMultiplication.type_name(), 1)
sfg.set_latency_of_type(Butterfly.type_name(), 1)
sfg.set_execution_time_of_type(Butterfly.type_name(), 1)
resources = {
Butterfly.type_name(): 2,
ConstantMultiplication.type_name(): 2,
Input.type_name(): sys.maxsize,
Output.type_name(): sys.maxsize,
}
schedule = Schedule(
sfg, scheduler=EarliestDeadlineScheduler(max_resources=resources)
)
assert schedule.start_times == {
"in0": 0,
"in2": 0,
"in4": 0,
"in6": 0,
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"in7": 0,
"bfly6": 0,
"bfly8": 0,
"cmul2": 1,
"cmul3": 1,
"bfly11": 1,
"bfly7": 1,
"cmul0": 2,
"bfly0": 2,
"cmul4": 2,
"bfly5": 3,
"bfly1": 3,
"cmul1": 4,
"bfly2": 4,
"bfly9": 4,
"bfly10": 5,
"bfly3": 5,
"out0": 5,
"out4": 5,
"bfly4": 6,
"out1": 6,
"out2": 6,
"out5": 6,
"out6": 6,
"out7": 7,
"out3": 7,
}
assert schedule.schedule_time == 7
class TestLeastSlackTimeScheduler:
def test_empty_sfg(self, sfg_empty):
with pytest.raises(
ValueError, match="Empty signal flow graph cannot be scheduled."
):
Schedule(sfg_empty, scheduler=LeastSlackTimeScheduler())
def test_direct_form_1_iir(self):
sfg = direct_form_1_iir([1, 2, 3], [1, 2, 3])
sfg.set_latency_of_type(ConstantMultiplication.type_name(), 2)
sfg.set_execution_time_of_type(ConstantMultiplication.type_name(), 1)
sfg.set_latency_of_type(Addition.type_name(), 3)
sfg.set_execution_time_of_type(Addition.type_name(), 1)
resources = {
Addition.type_name(): 1,
ConstantMultiplication.type_name(): 1,
Input.type_name(): sys.maxsize,
Output.type_name(): sys.maxsize,
}
schedule = Schedule(
sfg, scheduler=LeastSlackTimeScheduler(max_resources=resources)
)
assert schedule.start_times == {
"in0": 0,
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"cmul3": 0,
"cmul4": 1,
"cmul0": 2,
"add1": 3,
"cmul1": 3,
"cmul2": 4,
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"add0": 6,
"add3": 7,
"add2": 10,
"out0": 13,
}
assert schedule.schedule_time == 13
def test_direct_form_2_iir_1_add_1_mul(self, sfg_direct_form_iir_lp_filter):
sfg_direct_form_iir_lp_filter.set_latency_of_type(
ConstantMultiplication.type_name(), 3
)
sfg_direct_form_iir_lp_filter.set_latency_of_type(Addition.type_name(), 2)
sfg_direct_form_iir_lp_filter.set_execution_time_of_type(
ConstantMultiplication.type_name(), 1
)
sfg_direct_form_iir_lp_filter.set_execution_time_of_type(
Addition.type_name(), 1
)
resources = {
Addition.type_name(): 1,
ConstantMultiplication.type_name(): 1,
Input.type_name(): sys.maxsize,
Output.type_name(): sys.maxsize,
}
schedule = Schedule(
sfg_direct_form_iir_lp_filter,
scheduler=LeastSlackTimeScheduler(resources),
"in0": 0,
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"cmul3": 0,
"cmul4": 1,
"cmul1": 2,
"cmul2": 3,
"add1": 4,
"add0": 6,
"add3": 7,
"cmul0": 8,
"add2": 11,
"out0": 13,
}
assert schedule.schedule_time == 13
def test_direct_form_2_iir_2_add_3_mul(self, sfg_direct_form_iir_lp_filter):
sfg_direct_form_iir_lp_filter.set_latency_of_type(
ConstantMultiplication.type_name(), 3
)
sfg_direct_form_iir_lp_filter.set_latency_of_type(Addition.type_name(), 2)
sfg_direct_form_iir_lp_filter.set_execution_time_of_type(
ConstantMultiplication.type_name(), 1
)
sfg_direct_form_iir_lp_filter.set_execution_time_of_type(
Addition.type_name(), 1
)
resources = {
Addition.type_name(): 2,
ConstantMultiplication.type_name(): 3,
Input.type_name(): sys.maxsize,
Output.type_name(): sys.maxsize,
}
schedule = Schedule(
sfg_direct_form_iir_lp_filter,
scheduler=LeastSlackTimeScheduler(resources),
"in0": 0,
"cmul1": 0,
"cmul4": 0,
"cmul3": 0,
"cmul2": 1,
"add1": 3,
"add3": 4,
"add0": 5,
"cmul0": 7,
"add2": 10,
"out0": 12,
}
assert schedule.schedule_time == 12
def test_radix_2_fft_8_points(self):
sfg = radix_2_dif_fft(points=8)
sfg.set_latency_of_type(ConstantMultiplication.type_name(), 2)
sfg.set_execution_time_of_type(ConstantMultiplication.type_name(), 1)
sfg.set_latency_of_type(Butterfly.type_name(), 1)
sfg.set_execution_time_of_type(Butterfly.type_name(), 1)
resources = {
Butterfly.type_name(): 2,
ConstantMultiplication.type_name(): 2,
Input.type_name(): sys.maxsize,
Output.type_name(): sys.maxsize,
}
schedule = Schedule(
sfg, scheduler=LeastSlackTimeScheduler(max_resources=resources)
)
assert schedule.start_times == {
"in0": 0,
"in2": 0,
"in4": 0,
"in6": 0,
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"in7": 0,
"bfly6": 0,
"bfly8": 0,
"cmul2": 1,
"cmul3": 1,
"bfly11": 1,
"bfly7": 1,
"cmul0": 2,
"bfly0": 2,
"cmul4": 2,
"bfly5": 3,
"bfly1": 3,
"cmul1": 4,
"bfly2": 4,
"bfly9": 4,
"bfly10": 5,
"bfly3": 5,
"out0": 5,
"out4": 5,
"bfly4": 6,
"out1": 6,
"out2": 6,
"out5": 6,
"out6": 6,
"out7": 7,
"out3": 7,
}
assert schedule.schedule_time == 7
class TestMaxFanOutScheduler:
def test_empty_sfg(self, sfg_empty):
with pytest.raises(
ValueError, match="Empty signal flow graph cannot be scheduled."
):
Schedule(sfg_empty, scheduler=MaxFanOutScheduler())
def test_direct_form_1_iir(self):
sfg = direct_form_1_iir([1, 2, 3], [1, 2, 3])
sfg.set_latency_of_type(ConstantMultiplication.type_name(), 2)
sfg.set_execution_time_of_type(ConstantMultiplication.type_name(), 1)
sfg.set_latency_of_type(Addition.type_name(), 3)
sfg.set_execution_time_of_type(Addition.type_name(), 1)
resources = {Addition.type_name(): 1, ConstantMultiplication.type_name(): 1}
schedule = Schedule(sfg, scheduler=MaxFanOutScheduler(max_resources=resources))
assert schedule.start_times == {
"in0": 0,
"cmul0": 0,
"cmul1": 1,
"cmul2": 2,
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"cmul3": 3,
"cmul4": 4,
"add3": 4,
"add1": 6,
"add0": 9,
"add2": 12,
"out0": 15,
}
assert schedule.schedule_time == 15
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def test_ldlt_inverse_3x3(self):
sfg = ldlt_matrix_inverse(N=3)
sfg.set_latency_of_type(MADS.type_name(), 3)
sfg.set_latency_of_type(Reciprocal.type_name(), 2)
sfg.set_execution_time_of_type(MADS.type_name(), 1)
sfg.set_execution_time_of_type(Reciprocal.type_name(), 1)
resources = {MADS.type_name(): 1, Reciprocal.type_name(): 1}
schedule = Schedule(sfg, scheduler=MaxFanOutScheduler(resources))
assert schedule.start_times == {
"in1": 0,
"in2": 1,
"in0": 2,
"rec0": 2,
"in4": 3,
"in5": 4,
"mads1": 4,
"dontcare4": 4,
"dontcare5": 5,
"in3": 5,
"mads0": 5,
"mads13": 7,
"mads12": 8,
"mads14": 9,
"rec1": 12,
"mads8": 14,
"dontcare2": 14,
"mads10": 17,
"rec2": 20,
"mads9": 22,
"out5": 22,
"dontcare0": 22,
"dontcare1": 23,
"mads11": 23,
"mads7": 25,
"out4": 25,
"mads3": 26,
"mads6": 27,
"dontcare3": 27,
"out3": 28,
"mads2": 29,
"out2": 29,
"mads5": 30,
"mads4": 33,
"out1": 33,
"out0": 36,
}
assert schedule.schedule_time == 36
class TestHybridScheduler:
def test_empty_sfg(self, sfg_empty):
with pytest.raises(
ValueError, match="Empty signal flow graph cannot be scheduled."
):
Schedule(sfg_empty, scheduler=HybridScheduler())
def test_direct_form_1_iir(self):
sfg = direct_form_1_iir([1, 2, 3], [1, 2, 3])
sfg.set_latency_of_type(ConstantMultiplication.type_name(), 2)
sfg.set_execution_time_of_type(ConstantMultiplication.type_name(), 1)
sfg.set_latency_of_type(Addition.type_name(), 3)
sfg.set_execution_time_of_type(Addition.type_name(), 1)
resources = {Addition.type_name(): 1, ConstantMultiplication.type_name(): 1}
schedule = Schedule(sfg, scheduler=HybridScheduler(max_resources=resources))
assert schedule.start_times == {
"in0": 0,
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"cmul3": 0,
"cmul4": 1,
"cmul0": 2,
"add1": 3,
"cmul1": 3,
"cmul2": 4,
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"add0": 6,
"add3": 7,
"add2": 10,
"out0": 13,
}
assert schedule.schedule_time == 13
def test_radix_2_fft_8_points(self):
sfg = radix_2_dif_fft(points=8)
sfg.set_latency_of_type(ConstantMultiplication.type_name(), 2)
sfg.set_execution_time_of_type(ConstantMultiplication.type_name(), 1)
sfg.set_latency_of_type(Butterfly.type_name(), 1)
sfg.set_execution_time_of_type(Butterfly.type_name(), 1)
resources = {
Butterfly.type_name(): 2,
ConstantMultiplication.type_name(): 2,
Input.type_name(): sys.maxsize,
Output.type_name(): sys.maxsize,
}
schedule = Schedule(sfg, scheduler=HybridScheduler(max_resources=resources))
assert schedule.start_times == {
"in0": 0,
"in2": 0,
"in4": 0,
"in6": 0,
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"in7": 0,
"bfly6": 0,
"bfly8": 0,
"cmul2": 1,
"cmul3": 1,
"bfly11": 1,
"bfly7": 1,
"cmul0": 2,
"bfly0": 2,
"cmul4": 2,
"bfly5": 3,
"bfly1": 3,
"cmul1": 4,
"bfly2": 4,
"bfly9": 4,
"bfly10": 5,
"bfly3": 5,
"out0": 5,
"out4": 5,
"bfly4": 6,
"out1": 6,
"out2": 6,
"out5": 6,
"out6": 6,
"out7": 7,
"out3": 7,
}
assert schedule.schedule_time == 7
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def test_radix_2_fft_8_points_one_output(self):
sfg = radix_2_dif_fft(points=8)
sfg.set_latency_of_type(ConstantMultiplication.type_name(), 2)
sfg.set_execution_time_of_type(ConstantMultiplication.type_name(), 1)
sfg.set_latency_of_type(Butterfly.type_name(), 1)
sfg.set_execution_time_of_type(Butterfly.type_name(), 1)
resources = {
Butterfly.type_name(): 2,
ConstantMultiplication.type_name(): 2,
Input.type_name(): sys.maxsize,
Output.type_name(): 1,
}
schedule = Schedule(sfg, scheduler=HybridScheduler(max_resources=resources))
assert schedule.start_times == {
"in0": 0,
"in1": 0,
"in2": 0,
"in3": 0,
"in4": 0,
"in5": 0,
"in6": 0,
"in7": 0,
"bfly6": 0,
"bfly8": 0,
"cmul2": 1,
"cmul3": 1,
"bfly11": 1,
"bfly7": 1,
"cmul0": 2,
"bfly0": 2,
"cmul4": 2,
"bfly5": 3,
"bfly1": 3,
"cmul1": 4,
"bfly2": 4,
"bfly9": 4,
"bfly10": 5,
"bfly3": 5,
"out0": 5,
"bfly4": 6,
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"out2": 6,
"out3": 7,
"out7": 8,
"out6": 9,
"out4": 10,
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"out1": 11,
"out5": 12,
}
assert schedule.schedule_time == 12
def test_radix_2_fft_8_points_specified_IO_times_cyclic(self):
sfg = radix_2_dif_fft(points=8)
sfg.set_latency_of_type(Butterfly.type_name(), 3)
sfg.set_latency_of_type(ConstantMultiplication.type_name(), 2)
sfg.set_execution_time_of_type(Butterfly.type_name(), 1)
sfg.set_execution_time_of_type(ConstantMultiplication.type_name(), 1)
resources = {
Butterfly.type_name(): 1,
ConstantMultiplication.type_name(): 1,
Input.type_name(): sys.maxsize,
Output.type_name(): sys.maxsize,
}
input_times = {
"in0": 0,
"in1": 1,
"in2": 2,
"in3": 3,
"in4": 4,
"in5": 5,
"in6": 6,
"in7": 7,
}
output_times = {
"out0": -2,
"out1": -1,
"out2": 0,
"out3": 1,
"out4": 2,
"out5": 3,
"out6": 4,
"out7": 5,
}
schedule = Schedule(
sfg,
scheduler=HybridScheduler(
resources, input_times=input_times, output_delta_times=output_times
),
cyclic=True,
)
assert schedule.start_times == {
"in0": 0,
"in1": 1,
"in2": 2,
"in3": 3,
"in4": 4,
"in5": 5,
"in6": 6,
"in7": 7,
"bfly0": 4,
"bfly8": 5,
"bfly11": 6,
"bfly6": 7,
"cmul2": 8,
"cmul0": 9,
"bfly1": 9,
"cmul3": 10,
"bfly7": 10,
"bfly2": 11,
"bfly5": 12,
"cmul4": 13,
"bfly9": 13,
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"bfly3": 15,
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"bfly10": 16,
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"bfly4": 17,
"out0": 18,
"out1": 19,
"out2": 20,
"out3": 1,
"out4": 2,
"out5": 3,
"out6": 4,
"out7": 5,
}
assert schedule.schedule_time == 20
def test_radix_2_fft_8_points_specified_IO_times_non_cyclic(self):
sfg = radix_2_dif_fft(points=8)
sfg.set_latency_of_type(Butterfly.type_name(), 3)
sfg.set_latency_of_type(ConstantMultiplication.type_name(), 2)
sfg.set_execution_time_of_type(Butterfly.type_name(), 1)
sfg.set_execution_time_of_type(ConstantMultiplication.type_name(), 1)
resources = {Butterfly.type_name(): 1, ConstantMultiplication.type_name(): 1}
input_times = {
"in0": 0,
"in1": 1,
"in2": 2,
"in3": 3,
"in4": 4,
"in5": 5,
"in6": 6,
"in7": 7,
}
output_times = {
"out0": -2,
"out1": -1,
"out2": 0,
"out3": 1,
"out4": 2,
"out5": 3,
"out6": 4,
"out7": 5,
}
schedule = Schedule(
sfg,
scheduler=HybridScheduler(
resources, input_times=input_times, output_delta_times=output_times
),
cyclic=False,
)
assert schedule.start_times == {
"in0": 0,
"in1": 1,
"in2": 2,
"in3": 3,
"in4": 4,
"in5": 5,
"in6": 6,
"in7": 7,
"bfly0": 4,
"bfly8": 5,
"bfly11": 6,
"bfly6": 7,
"cmul2": 8,
"cmul0": 9,
"bfly1": 9,
"cmul3": 10,
"bfly7": 10,
"bfly2": 11,
"bfly5": 12,
"cmul4": 13,
"bfly9": 13,
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"bfly3": 15,
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"bfly10": 16,
"bfly4": 17,
"out0": 18,
"out1": 19,
"out2": 20,
"out3": 21,
"out4": 22,
"out5": 23,
"out6": 24,
"out7": 25,
}
assert schedule.schedule_time == 25
def test_ldlt_inverse_2x2(self):
sfg = ldlt_matrix_inverse(N=2)
sfg.set_latency_of_type(MADS.type_name(), 3)
sfg.set_latency_of_type(Reciprocal.type_name(), 2)
sfg.set_execution_time_of_type(MADS.type_name(), 1)
sfg.set_execution_time_of_type(Reciprocal.type_name(), 1)
resources = {
MADS.type_name(): 1,
Reciprocal.type_name(): 1,
Input.type_name(): sys.maxsize,
Output.type_name(): sys.maxsize,
}
schedule = Schedule(
sfg,
scheduler=HybridScheduler(resources),
)
assert schedule.start_times == {
"in0": 0,
"in1": 0,
"in2": 0,
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"rec0": 0,
"dontcare1": 2,
"mads0": 2,
"mads3": 5,
"rec1": 8,
"dontcare0": 10,
"mads2": 10,
"mads1": 13,
"out2": 10,
"out1": 13,
"out0": 16,
}
assert schedule.schedule_time == 16
def test_ldlt_inverse_2x2_specified_IO_times_cyclic(self):
sfg = ldlt_matrix_inverse(N=2)
sfg.set_latency_of_type(MADS.type_name(), 3)
sfg.set_latency_of_type(Reciprocal.type_name(), 2)
sfg.set_execution_time_of_type(MADS.type_name(), 1)
sfg.set_execution_time_of_type(Reciprocal.type_name(), 1)
resources = {MADS.type_name(): 1, Reciprocal.type_name(): 1}
input_times = {
"in0": 0,
"in1": 1,
"in2": 2,
}
output_times = {
"out0": 0,
"out1": 1,
"out2": 2,
}
schedule = Schedule(
sfg,
scheduler=HybridScheduler(
resources, input_times=input_times, output_delta_times=output_times
),
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cyclic=True,
)
assert schedule.start_times == {
"in0": 0,
"in1": 1,
"in2": 2,
"rec0": 0,
"dontcare1": 2,
"mads0": 2,
"mads3": 5,
"rec1": 8,
"dontcare0": 10,
"mads2": 10,
"mads1": 13,
"out0": 16,
"out1": 1,
"out2": 2,
}
assert schedule.schedule_time == 16
def test_max_invalid_resources(self):
sfg = ldlt_matrix_inverse(N=2)
sfg.set_latency_of_type(MADS.type_name(), 3)
sfg.set_latency_of_type(Reciprocal.type_name(), 2)
sfg.set_execution_time_of_type(MADS.type_name(), 1)
sfg.set_execution_time_of_type(Reciprocal.type_name(), 1)
resources = 2
with pytest.raises(ValueError, match="max_resources must be a dictionary."):
Schedule(sfg, scheduler=HybridScheduler(resources))
resources = "test"
with pytest.raises(ValueError, match="max_resources must be a dictionary."):
Schedule(sfg, scheduler=HybridScheduler(resources))
resources = []
with pytest.raises(ValueError, match="max_resources must be a dictionary."):
Schedule(sfg, scheduler=HybridScheduler(resources))
resources = {1: 1}
with pytest.raises(
ValueError, match="max_resources key must be a valid type_name."
):
Schedule(sfg, scheduler=HybridScheduler(resources))
resources = {MADS.type_name(): "test"}
with pytest.raises(ValueError, match="max_resources value must be an integer."):
Schedule(sfg, scheduler=HybridScheduler(resources))
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def test_ldlt_inverse_3x3_read_and_write_constrained(self):
sfg = ldlt_matrix_inverse(N=3)
sfg.set_latency_of_type(MADS.type_name(), 3)
sfg.set_latency_of_type(Reciprocal.type_name(), 2)
sfg.set_execution_time_of_type(MADS.type_name(), 1)
sfg.set_execution_time_of_type(Reciprocal.type_name(), 1)
resources = {MADS.type_name(): 1, Reciprocal.type_name(): 1}
schedule = Schedule(
sfg,
scheduler=HybridScheduler(
max_resources=resources,
max_concurrent_reads=3,
max_concurrent_writes=1,
),
)
direct, mem_vars = schedule.get_memory_variables().split_on_length()
assert mem_vars.read_ports_bound() == 3
assert mem_vars.write_ports_bound() == 1
def test_read_constrained_too_tight(self):
sfg = ldlt_matrix_inverse(N=2)
sfg.set_latency_of_type(MADS.type_name(), 3)
sfg.set_latency_of_type(Reciprocal.type_name(), 2)
sfg.set_execution_time_of_type(MADS.type_name(), 1)
sfg.set_execution_time_of_type(Reciprocal.type_name(), 1)
resources = {MADS.type_name(): 1, Reciprocal.type_name(): 1}
with pytest.raises(
TimeoutError,
match="Algorithm did not manage to schedule any operation for 10 time steps, try relaxing the constraints.",
):
Schedule(
sfg,
scheduler=HybridScheduler(
max_resources=resources,
max_concurrent_reads=2,
),
)
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def test_32_point_fft_custom_io_times(self):
POINTS = 32
sfg = radix_2_dif_fft(POINTS)
sfg.set_latency_of_type(Butterfly.type_name(), 1)
sfg.set_latency_of_type(ConstantMultiplication.type_name(), 3)
sfg.set_execution_time_of_type(Butterfly.type_name(), 1)
sfg.set_execution_time_of_type(ConstantMultiplication.type_name(), 1)
resources = {Butterfly.type_name(): 1, ConstantMultiplication.type_name(): 1}
input_times = {f"in{i}": i for i in range(POINTS)}
output_delta_times = {f"out{i}": i for i in range(POINTS)}
schedule = Schedule(
sfg,
scheduler=HybridScheduler(
resources,
input_times=input_times,
output_delta_times=output_delta_times,
),
)
for i in range(POINTS):
assert schedule.start_times[f"in{i}"] == i
assert (
schedule.start_times[f"out{i}"]
== schedule.get_max_non_io_end_time() + i
)
# Too slow for pipeline right now
# def test_64_point_fft_custom_io_times(self):
# POINTS = 64
# sfg = radix_2_dif_fft(POINTS)
# sfg.set_latency_of_type(Butterfly.type_name(), 1)
# sfg.set_latency_of_type(ConstantMultiplication.type_name(), 3)
# sfg.set_execution_time_of_type(Butterfly.type_name(), 1)
# sfg.set_execution_time_of_type(ConstantMultiplication.type_name(), 1)
# resources = {Butterfly.type_name(): 1, ConstantMultiplication.type_name(): 1}
# input_times = {f"in{i}": i for i in range(POINTS)}
# output_delta_times = {f"out{i}": i for i in range(POINTS)}
# schedule = Schedule(
# sfg,
# scheduler=HybridScheduler(
# resources,
# input_times=input_times,
# output_delta_times=output_delta_times,
# ),
# )
# for i in range(POINTS):
# assert schedule.start_times[f"in{i}"] == i
# assert (
# schedule.start_times[f"out{i}"]
# == schedule.get_max_non_io_end_time() + i
# )
def test_32_point_fft_custom_io_times_cyclic(self):
POINTS = 32
sfg = radix_2_dif_fft(POINTS)
sfg.set_latency_of_type(Butterfly.type_name(), 1)
sfg.set_latency_of_type(ConstantMultiplication.type_name(), 3)
sfg.set_execution_time_of_type(Butterfly.type_name(), 1)
sfg.set_execution_time_of_type(ConstantMultiplication.type_name(), 1)
resources = {Butterfly.type_name(): 1, ConstantMultiplication.type_name(): 1}
input_times = {f"in{i}": i for i in range(POINTS)}
output_delta_times = {f"out{i}": i for i in range(POINTS)}
schedule = Schedule(
sfg,
scheduler=HybridScheduler(
resources,
input_times=input_times,
output_delta_times=output_delta_times,
),
schedule_time=96,
cyclic=True,
)
for i in range(POINTS):
assert schedule.start_times[f"in{i}"] == i
assert schedule.start_times[f"out{i}"] == 96 if i == 0 else i
def test_cyclic_scheduling(self):
sfg = radix_2_dif_fft(points=4)
sfg.set_latency_of_type(Butterfly.type_name(), 1)
sfg.set_latency_of_type(ConstantMultiplication.type_name(), 3)
sfg.set_execution_time_of_type(Butterfly.type_name(), 1)
sfg.set_execution_time_of_type(ConstantMultiplication.type_name(), 1)