Files
tinygrad/tinygrad/engine/graph.py
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101 lines
5.1 KiB
Python

import os, atexit, functools
from collections import defaultdict
from typing import List, Any, DefaultDict
from tinygrad.ops import UnaryOps, BinaryOps, ReduceOps, LoadOps, BufferOps, TernaryOps, LazyOp
from tinygrad.device import Device
from tinygrad.helpers import GRAPHPATH, DEBUG, GlobalCounters, getenv
from tinygrad.codegen.linearizer import UOps, UOp
from tinygrad.shape.symbolic import NumNode
from tinygrad.lazy import LazyBuffer
try: import networkx as nx
except ImportError: pass
# **** debugging and graphing ****
if DEBUG >= 2:
def print_globalcounters():
if GlobalCounters.time_sum_s == 0: return
print(f"avg: {GlobalCounters.global_ops*1e-9/GlobalCounters.time_sum_s:8.2f} GFLOPS {GlobalCounters.global_mem*1e-9/GlobalCounters.time_sum_s:8.2f} GB/s", # noqa: E501
f"{' '*10}total: {GlobalCounters.kernel_count:5d} kernels {GlobalCounters.global_ops*1e-9:8.2f} GOPS {GlobalCounters.global_mem*1e-9:8.2f} GB {GlobalCounters.time_sum_s*1e3:8.2f} ms") # noqa: E501
atexit.register(print_globalcounters)
def save_graph(G, fn, opt=""):
print("saving", G, f"to {fn}.svg")
nx.drawing.nx_pydot.write_dot(G, f'{fn}.dot')
os.system(f'dot {opt} -Tsvg {fn}.dot -o {fn}.svg')
G:Any = None
def init_graph():
global G
if G is not None: return
G = nx.DiGraph()
atexit.register(functools.partial(save_graph, G, GRAPHPATH)) # -Gnslimit=100 can make it finish, but you won't like results
counts: DefaultDict[type, int] = defaultdict(int)
def nm(x):
if not hasattr(x, 'node_id'):
setattr(x, 'node_id', counts[type(x)])
counts[type(x)] += 1
return x.node_id
def realized_lazybuffer(lb:'LazyBuffer', num):
init_graph()
G.nodes[nm(lb)]['style'] = '"filled,bold"'
G.nodes[nm(lb)]['fillcolor'] = G.nodes[nm(lb)]['fillcolor'][:-2]
G.nodes[nm(lb)]['label'] = '"' + G.nodes[nm(lb)]["label"].replace('"', '') + f'\nK:{num}"'
top_colors = {LoadOps: '#FFFFa0', UnaryOps: "#c0c0c0", ReduceOps: "#FFA0A0", BinaryOps: "#c0c0c0",
TernaryOps: "#c0c0c0", BufferOps: '#a0a0ff'}
def log_lazybuffer(lb:'LazyBuffer', scheduled=False):
init_graph()
if lb.base.realized is None and lb.base.op is LoadOps.CONST: return
if lb.base != lb:
offset = lb.st.expr_idxs([NumNode(0)] * len(lb.st.shape))[0]
label = f"{lb.st.shape}\n{lb.st.real_strides()}" + (f"\n{offset}" if offset != 0 else "")
G.add_node(nm(lb), style='"filled,dashed"', fillcolor="#80ff8080", color="black", label=label)
G.add_edge(nm(lb.base), nm(lb), color='#00000060')
lb = lb.base
if lb.realized is None:
label_append = []
for idx,x in enumerate(lb.srcs):
if nm(x) not in G.nodes: log_lazybuffer(x)
if x.base.realized is None and x.base.op is LoadOps.CONST:
label_append.append(f"\nCONST{idx} {x.base.arg}")
else:
G.add_edge(nm(x), nm(lb), color='#a0a0a0')
label = '"' + \
(str(set(x.shape for x in lb.srcs))+"\n"+str(lb.shape) if lb.op in ReduceOps else str(lb.shape)) + \
(f"\n{lb.dtype.name}" if lb.dtype.name != "float" else "")+f"\n{lb.op}"+(f"\n{lb.arg}" if lb.op in {LoadOps.CONST, UnaryOps.CAST} else "") + \
(f"\n{lb.device}" if lb.device != Device.DEFAULT else "") + ''.join(label_append) + '"'
G.add_node(nm(lb), style='"filled,dashed"', fillcolor=[v for k,v in top_colors.items() if lb.op in k][0] + "80", color="black", label=label)
if scheduled: G.nodes[nm(lb)]['shape'] = 'box'
else:
if nm(lb) not in G.nodes:
# realized but unseen?
G.add_node(nm(lb), label=f'"{str(lb.base.realized)[5:-1].replace(" ", chr(10))}\nb:{nm(lb.realized)}"', style='filled', fillcolor="#f0c08080")
def _tree(lazyop:LazyOp, cycles, cnt, prefix=""):
cnt[0] += 1
if len(lazyop.src) == 0: return [f"━━ {prefix}{lazyop.op.name} {lazyop.arg if lazyop.arg else ''}"]
if (lid := id(lazyop)) in cycles and cycles[lid][1] > (tcnt := getenv("TREE_CYCLE_CNT", 5)) and tcnt >= 0:
return [f"━⬆︎ goto {cycles[id(lazyop)][0]}: {lazyop.op.name}"]
cycles[lid] = (cnt[0], 1 if lid not in cycles else cycles[lid][1]+1)
lines = [f"━┳ {prefix}{lazyop.op.name} {lazyop.arg if lazyop.arg else ''}"]
childs = [_tree(c, cycles, cnt) for c in lazyop.src[:]]
for c in childs[:-1]: lines += [f" ┣{c[0]}"] + [f" ┃{l}" for l in c[1:]]
return lines + [" ┗"+childs[-1][0]] + [" "+l for l in childs[-1][1:]]
def print_tree(lazyop:LazyOp): print("\n".join([f"{str(i).rjust(3)} {s}" for i,s in enumerate(_tree(lazyop, {}, [-1]))]))
def graph_uops(uops:List[UOp]):
colors = {UOps.ALU: "#ffffc0", UOps.LOAD: "#ffc0c0", UOps.STORE: "#c0ffc0", UOps.SPECIAL: "#c0c0ff", UOps.CONST: "#e0e0e0",
UOps.DEFINE_GLOBAL: "#ffe0b0", UOps.DEFINE_LOCAL: "#ffe0d0", UOps.DEFINE_ACC: "#f0ffe0",
UOps.LOOP: "#c8a0e0", UOps.PHI: "#e0ffc0", UOps.BARRIER: "#ff8080", UOps.IF: "#c8b0c0"}
G = nx.DiGraph()
for u in uops:
if u.uop in {UOps.ENDLOOP, UOps.ENDIF}: continue
G.add_node(uops.index(u), label=f"{str(u.uop)[5:]}{(' '+str(u.arg)) if u.arg is not None else ''}\n{str(u.dtype)}", style="filled", fillcolor=colors.get(u.uop, "#ffffff")) # noqa: E501
for v in u.vin: G.add_edge(uops.index(v), uops.index(u))
save_graph(G, f'{GRAPHPATH}.uops', '-Grankdir=LR')