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tinygrad/extra/viz/kernel_graph.py

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#!/usr/bin/env python3
# Usage: DEBUG=5 python -m tinygrad.viz.cli --json | ./extra/viz/kernel_graph.py E_8_8_16_4
import argparse, json, sys
from tinygrad.helpers import ansistrip
def get_node(graph:dict, key): return graph[str(key)]
if __name__ == "__main__":
parser = argparse.ArgumentParser(description="print CALL graph from DEBUG=5 tinygrad.viz.cli --json output")
parser.add_argument("kernel", type=str, nargs="?", default="ALL", metavar="NAME", help="Kernel name to stop at (default: print all kernels)")
args = parser.parse_args()
ref:int|None = None
for line in sys.stdin:
if not line.strip(): continue
graph = json.loads(line)
if graph.get("ref") is not None and (args.kernel == "ALL" or graph["ref"] == ref):
print(graph)
if (v:=json.loads(next(sys.stdin, "{}")).get("value")): print(v)
if ref is not None or not isinstance(rec:=next(iter(graph.values()), {}), dict) or "label" not in rec: continue
for v in graph.values():
if not v["label"].startswith("CALL"): continue
lines = v["label"].splitlines()
# print the CALL and its kernel name from codegen
print(f"{lines[0]:<12} {lines[-1]}")
# print sources (buffer, param, multi)
unique:dict[str, int] = {}
for i,(_,s) in enumerate(v["src"][1:]):
while get_node(graph, s)["label"].startswith("AFTER"): s = get_node(graph, s)["src"][0][1]
if (num:=unique.get(str(s))) is None: unique[str(s)] = num = len(unique)
print(f"SRC {i} {' '.join(get_node(graph, s)['label'].splitlines())} g{num}")
# print access patterns
ss = [v["src"][0][1]]
seen:set[str] = set()
while ss:
if (s:=str(ss.pop())) in seen: continue
seen.add(s)
if get_node(graph, s)["label"].startswith("INDEX"):
idx_str = get_node(graph, s)["label"].splitlines()
src_str = ["SRC"]+get_node(graph, get_node(graph, s)["src"][0][1])["label"].splitlines()[1:]
print(" ".join(idx_str+src_str))
ss += [x[1] for x in get_node(graph, s)["src"]]
if args.kernel != "ALL" and args.kernel in ansistrip(v["label"]):
ref = v["ref"]
break