util: bazel plot_congestion

Signed-off-by: Øyvind Harboe <[email protected]>

Author: oharboe

flow/BUILD.bazel

@@ -1,5 +1,4 @@
 load("@bazel-orfs//:openroad.bzl", "orfs_flow")
-load("@rules_python//python:pip.bzl", "compile_pip_requirements")
 
 filegroup(
     name = "constraints-gcd",
@@ -250,9 +249,3 @@ filegroup(
     srcs = glob(include = ["designs/src/ethmac_lvt/*.v"]),
     visibility = [":__subpackages__"],
 )
-
-compile_pip_requirements(
-    name = "requirements",
-    src = "util/requirements.in",
-    requirements_txt = "util/requirements_lock.txt",
-)

flow/designs/asap7/ethmac_lvt/BUILD.bazel

@@ -1,5 +1,5 @@
 load("@bazel-orfs//:sweep.bzl", "orfs_sweep")
-load("@orfs-pip//:requirements.bzl", "requirement")
+load("//util:plot_congestion.bzl", "plot_congestion")
 
 # Format densities, rounding to 2 decimal places.
 SWEEPS = {
@@ -51,35 +51,9 @@ orfs_sweep(
     verilog_files = ["//:ethmac_lvt_src"],
 )
 
-[filegroup(
-    name = "ethmac_lvt_{value}_congestion".format(value = value),
-    srcs = [":ethmac_lvt_{value}_grt".format(value = value)],
-    output_group = "congestion.rpt",
-) for value in SWEEPS[SWEEP]]
-
-filegroup(
-    name = "congestion",
-    srcs = [":ethmac_lvt_{value}_congestion".format(value = value) for value in SWEEPS[SWEEP]],
-)
-
-py_binary(
-    name = "plot_congestion",
-    srcs = ["plot_congestion.py"],
-    main = "plot_congestion.py",
-    deps = [requirement("matplotlib")],
-)
-
-genrule(
-    name = "plot_pdf",
-    srcs = [":congestion"],
-    outs = ["congestion.pdf"],
-    cmd = "$(execpath :plot_congestion) {value} $@ $(locations :congestion)".format(value = SWEEP),
-    tools = [":plot_congestion"],
-)
-
-sh_binary(
+plot_congestion(
     name = "plot",
-    srcs = [":open_plots.sh"],
-    args = ["$(location :plot_pdf)"],
-    data = [":plot_pdf"],
+    srcs = [":ethmac_lvt_{value}_grt".format(value = value) for value in SWEEPS[SWEEP]],
+    argument = SWEEP,
+    values = SWEEPS[SWEEP],
 )

flow/util/BUILD.bazel

@@ -0,0 +1,18 @@
+load("@orfs-pip//:requirements.bzl", "requirement")
+load("@rules_python//python:pip.bzl", "compile_pip_requirements")
+
+exports_files(["open_plots.sh"])
+
+py_binary(
+    name = "plot_congestion",
+    srcs = ["plot_congestion.py"],
+    main = "plot_congestion.py",
+    deps = [requirement("matplotlib")],
+    visibility = ["//visibility:public"],
+)
+
+compile_pip_requirements(
+    name = "requirements",
+    src = "requirements.in",
+    requirements_txt = "requirements_lock.txt",
+)

…w/designs/asap7/ethmac_lvt/open_plots.sh flow/util/open_plots.shflow/designs/asap7/ethmac_lvt/open_plots.sh renamed to flow/util/open_plots.sh flow/designs/asap7/ethmac_lvt/open_plots.sh renamed to flow/util/open_plots.sh

@@ -0,0 +1,23 @@
+"""Plots congestion against some parameter such as PLACE_DENSITY"""
+
+def plot_congestion(name, srcs, argument, values):
+    native.filegroup(
+        name = "{name}_congestion".format(name = name),
+        srcs = srcs,
+        output_group = "congestion.rpt",
+    )
+
+    native.genrule(
+        name = "{}_pdf".format(name),
+        srcs = ["{name}_congestion".format(name = name)],
+        outs = ["{}.pdf".format(name)],
+        cmd = "$(execpath //util:plot_congestion) {argument} $@ $(locations :{name}_congestion) {values}".format(values = " ".join(values), argument = argument, name=name),
+        tools = ["//util:plot_congestion"],
+    )
+
+    native.sh_binary(
+        name = name,
+        srcs = ["//util:open_plots.sh"],
+        args = ["$(location :{}.pdf)".format(name)],
+        data = ["{}.pdf".format(name)],
+    )

flow/util/plot_congestion.bzl

@@ -7,20 +7,21 @@
 
 sweep = sys.argv[1]
 output = sys.argv[2]
-files = sys.argv[3:]
+remainder = sys.argv[3:]
+files = remainder[:len(remainder) // 2]
+values = remainder[len(remainder) // 2:]
 
 # count lines in each file and divide by 3 and create a list of those
 # numbers
 congestion = []
 for file in files:
     with open(file, "r") as f:
         lines = f.readlines()
-        print(file)
-        density = re.search(r"(\d+\.?\d+)", file).group(1)
-        congestion.append((float(density), len(lines) // 4))
+        congestion.append(len(lines) // 4)
 
 # xy plot of density vs DRC errors
-x, y = zip(*congestion)
+x = list(map(float, values))
+y = congestion
 plt.plot(x, y, "o-")
 plt.xlabel(sweep)
 plt.ylabel("DRC Errors")