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Merge pull request #2735 from Pinata-Consulting/ethmac-lvt-grt
asap7/ethmac_lvt: study placement densities and grt
2 parents 9d75ef4 + 9c4d197 commit a2c8bee

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-151
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+262
-151
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‎flow/BUILD.bazel‎

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load("@bazel-orfs//:openroad.bzl", "orfs_flow")
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load("@rules_python//python:pip.bzl", "compile_pip_requirements")
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filegroup(
54
name = "constraints-gcd",
@@ -101,158 +100,8 @@ orfs_flow(
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]),
102101
)
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filegroup(
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name = "mock-array-constraints",
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srcs = [
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"designs/asap7/mock-array/constraints.sdc",
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],
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visibility = [":__subpackages__"],
110-
)
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filegroup(
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name = "mock-array-io",
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srcs = [
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"designs/asap7/mock-array/io.tcl",
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],
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data = [
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"designs/src/mock-array/util.tcl",
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],
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visibility = [":__subpackages__"],
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)
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MOCK_ARRAY_FLOORPLAN_PLACE = {
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"PLACE_PINS_ARGS": "-annealing",
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"IO_CONSTRAINTS": "$(location :mock-array-io)",
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"PLACE_DENSITY": "0.30",
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"DIE_AREA": "0 0 358.56 388.8",
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"CORE_AREA": "2.16 2.16 356.40000000000003 386.64000000000004",
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"MACRO_PLACE_HALO": "0 2.16",
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"RTLMP_BOUNDARY_WT": "0",
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"PDN_TCL": "$(PLATFORM_DIR)/openRoad/pdn/BLOCKS_grid_strategy.tcl",
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"MACRO_HALO_X": "0.5",
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"MACRO_HALO_Y": "0.5",
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"MACRO_BLOCKAGE_HALO": "0",
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"ADDITIONAL_FILES": "$(locations :mock-array-io)",
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}
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orfs_flow(
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name = "MockArray",
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macros = ["Element_generate_abstract"],
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stage_arguments = {
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"synth": {
143-
"SDC_FILE": "$(location :mock-array-constraints)",
144-
},
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"floorplan": MOCK_ARRAY_FLOORPLAN_PLACE | {
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},
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"place": MOCK_ARRAY_FLOORPLAN_PLACE | {
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},
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"cts": {
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"CTS_BUF_DISTANCE": "60",
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},
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"route": {
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# works with 28 or more iterations as of writing, so give it a few more.
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"GLOBAL_ROUTE_ARGS": "-congestion_iterations 40 -verbose",
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# If this design isn't quickly done in detailed routing, something is wrong.
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# At time of adding this option, only 12 iterations were needed for 0
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# violations.
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"DETAILED_ROUTE_ARGS": "-bottom_routing_layer M2 -top_routing_layer M7 -save_guide_updates -verbose 1 -droute_end_iter 15",
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# since we are specifying DETAILED_ROUTE_ARGS, we need to communicate the
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# same information to other stages in the flow.
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"MIN_ROUTING_LAYER": "M2",
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"MAX_ROUTING_LAYER": "M7",
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},
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"final": {
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"GDS_ALLOW_EMPTY": "Element",
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"PWR_NETS_VOLTAGEsS": "",
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"GND_NETS_VOLTAGES": "",
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},
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},
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stage_sources = {
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"synth": all_sources + [":mock-array-constraints"] + [":mock-array-io"],
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"floorplan": all_sources + [":mock-array-io"],
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"place": all_sources + [":mock-array-io"],
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"cts": all_sources,
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"final": all_sources,
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},
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verilog_files = glob(include = ["designs/src/mock-array/*.v"]),
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)
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filegroup(
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name = "mock-array-element-io",
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srcs = [
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"designs/asap7/mock-array/Element/io.tcl",
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],
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data = [
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"designs/src/mock-array/util.tcl",
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],
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visibility = [":__subpackages__"],
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)
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MOCK_ARRAY_ELEMENT_FLOORPLAN_PLACE = {
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"IO_CONSTRAINTS": "$(location :mock-array-element-io)",
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"PLACE_PINS_ARGS": "-annealing",
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}
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MOCK_ARRAY_ELEMENT_ALL = {
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"MOCK_ARRAY_ROWS": "8",
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"MOCK_ARRAY_COLS": "8",
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}
200-
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mock_array_all_sources = ["designs/src/mock-array/util.tcl"]
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orfs_flow(
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name = "Element",
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abstract_stage = "route",
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arguments = {
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"PLACE_DENSITY": "0.82",
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},
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stage_arguments = {
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"synth": MOCK_ARRAY_ELEMENT_ALL | {
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"SDC_FILE": "$(location :mock-array-constraints)",
212-
},
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"floorplan": MOCK_ARRAY_ELEMENT_ALL | MOCK_ARRAY_ELEMENT_FLOORPLAN_PLACE | {
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"DIE_AREA": "0 0 43.2 43.2",
215-
"CORE_AREA": "1.08 1.08 42.120000000000005 42.120000000000005",
216-
"PDN_TCL": "$(PLATFORM_DIR)/openRoad/pdn/BLOCK_grid_strategy.tcl",
217-
},
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"place": MOCK_ARRAY_ELEMENT_ALL | MOCK_ARRAY_ELEMENT_FLOORPLAN_PLACE | {
219-
},
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"cts": MOCK_ARRAY_ELEMENT_ALL | {
221-
},
222-
"route": MOCK_ARRAY_ELEMENT_ALL | {
223-
# If this design isn't quickly done in detailed routing, something is wrong.
224-
# At time of adding this option, only 3 iterations were needed for 0
225-
# violations.
226-
"DETAILED_ROUTE_ARGS": "-bottom_routing_layer M2 -top_routing_layer M5 -save_guide_updates -verbose 1 -droute_end_iter 10",
227-
# since we are specifying DETAILED_ROUTE_ARGS, we need to communicate the
228-
# same information to other stages in the flow.
229-
"MIN_ROUTING_LAYER": "M2",
230-
"MAX_ROUTING_LAYER": "M5",
231-
},
232-
"final": MOCK_ARRAY_ELEMENT_ALL | {
233-
"PWR_NETS_VOLTAGES": "",
234-
"GND_NETS_VOLTAGES": "",
235-
},
236-
},
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stage_sources = {
238-
"synth": mock_array_all_sources + [":mock-array-constraints"],
239-
"floorplan": mock_array_all_sources + [":mock-array-element-io"],
240-
"place": mock_array_all_sources + [":mock-array-element-io"],
241-
"cts": mock_array_all_sources,
242-
"route": mock_array_all_sources,
243-
"final": mock_array_all_sources,
244-
},
245-
verilog_files = glob(include = ["designs/src/mock-array/*.v"]),
246-
)
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248103
filegroup(
249104
name = "ethmac_lvt_src",
250105
srcs = glob(include = ["designs/src/ethmac_lvt/*.v"]),
251106
visibility = [":__subpackages__"],
252107
)
253-
254-
compile_pip_requirements(
255-
name = "requirements",
256-
src = "util/requirements.in",
257-
requirements_txt = "util/requirements_lock.txt",
258-
)

‎flow/designs/asap7/ethmac_lvt/BUILD.bazel‎

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load("@bazel-orfs//:sweep.bzl", "orfs_sweep")
2+
load("//util:plot_congestion.bzl", "plot_congestion")
3+
4+
# Format densities, rounding to 2 decimal places.
5+
SWEEPS = {
6+
"PLACE_DENSITY": [str(0.60 + x * 0.01 + 0.005)[:4] for x in range(20)],
7+
"CORE_UTILIZATION": [str(40 + x * 5) for x in range(4)],
8+
}
9+
10+
SWEEP = "PLACE_DENSITY"
11+
12+
orfs_sweep(
13+
name = "ethmac_lvt",
14+
arguments = {
15+
# Faster builds
16+
"SKIP_INCREMENTAL_REPAIR": "1",
17+
"GPL_TIMING_DRIVEN": "0",
18+
# Various
19+
"SDC_FILE": "$(location :constraint.sdc)",
20+
"ABC_AREA": "1",
21+
"CORE_UTILIZATION": "40",
22+
"CORE_ASPECT_RATIO": "1",
23+
"CORE_MARGIN": "2",
24+
"PLACE_DENSITY": "0.60",
25+
"ASAP7_USELVT": "1",
26+
"RECOVER_POWER": "1",
27+
"ADDITIONAL_LIBS": "$(LIB_DIR)/asap7sc7p5t_AO_RVT_FF_nldm_211120.lib.gz \
28+
$(LIB_DIR)/asap7sc7p5t_INVBUF_RVT_FF_nldm_220122.lib.gz \
29+
$(LIB_DIR)/asap7sc7p5t_OA_RVT_FF_nldm_211120.lib.gz \
30+
$(LIB_DIR)/asap7sc7p5t_SIMPLE_RVT_FF_nldm_211120.lib.gz \
31+
$(LIB_DIR)/asap7sc7p5t_SEQ_RVT_FF_nldm_220123.lib",
32+
"ADDITIONAL_GDS": "$(PLATFORM_DIR)/gds/asap7sc7p5t_28_R_220121a.gds",
33+
"ADDITIONAL_LEFS": "$(PLATFORM_DIR)/lef/asap7sc7p5t_28_R_1x_220121a.lef",
34+
},
35+
other_variants = {"base": {}},
36+
sources = {
37+
"SDC_FILE": [":constraint.sdc"],
38+
},
39+
sweep = {
40+
value: {
41+
"arguments": {
42+
SWEEP: value,
43+
},
44+
"previous_stage": {
45+
"floorplan": "ethmac_lvt_synth",
46+
},
47+
}
48+
for value in SWEEPS[SWEEP]
49+
},
50+
top = "ethmac",
51+
verilog_files = ["//:ethmac_lvt_src"],
52+
)
53+
54+
plot_congestion(
55+
name = "plot",
56+
srcs = [":ethmac_lvt_{value}_grt".format(value = value) for value in SWEEPS[SWEEP]],
57+
argument = SWEEP,
58+
values = SWEEPS[SWEEP],
59+
)

‎flow/designs/asap7/mock-array/BUILD.bazel‎

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load("@bazel-orfs//:openroad.bzl", "orfs_flow")
2+
load("@bazel-orfs//:sweep.bzl", "orfs_sweep")
3+
load("//util:plot_congestion.bzl", "plot_congestion")
4+
5+
# Format densities, rounding to 2 decimal places.
6+
SWEEPS = {
7+
"PLACE_DENSITY": [str(0.82 + x * 0.01 + 0.005)[:4] for x in range(10)],
8+
}
9+
10+
SWEEP = "PLACE_DENSITY"
11+
12+
filegroup(
13+
name = "mock-array-constraints",
14+
srcs = [
15+
"constraints.sdc",
16+
],
17+
visibility = [":__subpackages__"],
18+
)
19+
20+
filegroup(
21+
name = "mock-array-io",
22+
srcs = [
23+
"io.tcl",
24+
],
25+
data = [
26+
"//designs/src/mock-array:util.tcl",
27+
],
28+
visibility = [":__subpackages__"],
29+
)
30+
31+
orfs_flow(
32+
name = "MockArray",
33+
arguments = {
34+
"PLACE_PINS_ARGS": "-annealing",
35+
"IO_CONSTRAINTS": "$(location :mock-array-io)",
36+
"PLACE_DENSITY": "0.30",
37+
"DIE_AREA": "0 0 358.56 388.8",
38+
"CORE_AREA": "2.16 2.16 356.40000000000003 386.64000000000004",
39+
"MACRO_PLACE_HALO": "0 2.16",
40+
"RTLMP_BOUNDARY_WT": "0",
41+
"PDN_TCL": "$(PLATFORM_DIR)/openRoad/pdn/BLOCKS_grid_strategy.tcl",
42+
"MACRO_HALO_X": "0.5",
43+
"MACRO_HALO_Y": "0.5",
44+
"MACRO_BLOCKAGE_HALO": "0",
45+
"SDC_FILE": "$(location :mock-array-constraints)",
46+
"MAX_ROUTING_LAYER": "M9",
47+
"GDS_ALLOW_EMPTY": "Element",
48+
"PWR_NETS_VOLTAGEsS": "",
49+
"GND_NETS_VOLTAGES": "",
50+
},
51+
macros = ["Element_generate_abstract"],
52+
stage_sources = {
53+
"synth": [":mock-array-constraints"] + [":mock-array-io"],
54+
"floorplan": [":mock-array-io"],
55+
"place": [":mock-array-io"],
56+
},
57+
verilog_files = ["//designs/src/mock-array:verilog"],
58+
)
59+
60+
filegroup(
61+
name = "mock-array-element-io",
62+
srcs = [
63+
"Element/io.tcl",
64+
],
65+
data = [
66+
"//designs/src/mock-array:util.tcl",
67+
],
68+
visibility = [":__subpackages__"],
69+
)
70+
71+
mock_array_all_sources = ["//designs/src/mock-array:util.tcl"]
72+
73+
orfs_sweep(
74+
name = "Element",
75+
abstract_stage = "route",
76+
arguments = {
77+
"PLACE_DENSITY": "0.82",
78+
"MOCK_ARRAY_ROWS": "8",
79+
"MOCK_ARRAY_COLS": "8",
80+
"DETAILED_ROUTE_END_ITERATION": "6",
81+
"MIN_ROUTING_LAYER": "M2",
82+
"MAX_ROUTING_LAYER": "M5",
83+
"IO_PLACER_H": "M2 M4",
84+
"IO_PLACER_V": "M3 M5",
85+
"PLACE_PINS_ARGS": "-annealing",
86+
"GND_NETS_VOLTAGES": "",
87+
"PWR_NETS_VOLTAGES": "",
88+
"SDC_FILE": "$(location :mock-array-constraints)",
89+
"IO_CONSTRAINTS": "$(location :mock-array-element-io)",
90+
"DIE_AREA": "0 0 43.2 43.2",
91+
"CORE_AREA": "1.08 1.08 42.120000000000005 42.120000000000005",
92+
"PDN_TCL": "$(PLATFORM_DIR)/openRoad/pdn/BLOCK_grid_strategy.tcl",
93+
},
94+
other_variants = {"base": {}},
95+
stage_sources = {
96+
"synth": mock_array_all_sources + [":mock-array-constraints"],
97+
"floorplan": mock_array_all_sources + [":mock-array-element-io"],
98+
"place": mock_array_all_sources + [":mock-array-element-io"],
99+
"cts": mock_array_all_sources,
100+
"route": mock_array_all_sources,
101+
"final": mock_array_all_sources,
102+
},
103+
sweep = {
104+
value: {
105+
"arguments": {
106+
SWEEP: value,
107+
},
108+
"previous_stage": {
109+
"floorplan": "Element_synth",
110+
},
111+
}
112+
for value in SWEEPS[SWEEP]
113+
},
114+
verilog_files = ["//designs/src/mock-array:verilog"],
115+
)
116+
117+
plot_congestion(
118+
name = "plot",
119+
srcs = [":Element_{value}_grt".format(value = value) for value in SWEEPS[SWEEP]],
120+
argument = SWEEP,
121+
values = SWEEPS[SWEEP],
122+
)

‎flow/designs/src/mock-array/BUILD.bazel‎

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exports_files(["util.tcl"] + glob(["*.v"]))
2+
3+
filegroup(
4+
name = "verilog",
5+
srcs = glob(["*.v"]),
6+
visibility = ["//visibility:public"],
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)

‎flow/util/BUILD.bazel‎

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load("@orfs-pip//:requirements.bzl", "requirement")
2+
load("@rules_python//python:pip.bzl", "compile_pip_requirements")
3+
4+
exports_files(["open_plots.sh"])
5+
6+
py_binary(
7+
name = "plot_congestion",
8+
srcs = ["plot_congestion.py"],
9+
main = "plot_congestion.py",
10+
visibility = ["//visibility:public"],
11+
deps = [requirement("matplotlib")],
12+
)
13+
14+
compile_pip_requirements(
15+
name = "requirements",
16+
src = "requirements.in",
17+
requirements_txt = "requirements_lock.txt",
18+
)

‎flow/util/open_plots.sh‎

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1+
#!/bin/bash
2+
xdg-open $1

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