sunnypilot v2026.002.000

version: sunnypilot v2026.002.000 (staging)
date: 2026-07-21T07:44:02
master commit: 2c334ede443d7391d27575af8c854a095ba702a8

tinygrad_repo/examples/tools/bandwidth_test.py

@@ -0,0 +1,34 @@
+#!/usr/bin/env python3
+from tinygrad import Tensor, Device, GlobalCounters, Context, dtypes
+from tinygrad.helpers import getenv, colored
+
+SZ = 8_000_000_000
+GPUS = getenv("GPUS", 4) # TODO: expose a way in tinygrad to access this
+
+if __name__ == "__main__":
+  # create tensors
+  tens = [Tensor.ones(SZ, dtype=dtypes.uint8, device=f"{Device.DEFAULT}:{i}").contiguous() for i in range(GPUS)]
+  Tensor.realize(*tens)
+
+  bw = [[0.0]*GPUS for _ in range(GPUS)]
+  for i in range(GPUS):
+    for j in range(GPUS):
+      GlobalCounters.reset()
+      with Context(DEBUG=2):
+        if i == j:
+          # this copy would be optimized out, just add 1
+          (tens[i]+1).realize()
+        else:
+          tens[i].to(f"{Device.DEFAULT}:{j}").realize()
+      t = max(GlobalCounters.time_sum_s, 1e-9)
+      bw[i][j] = SZ / t / 1e9  # GB/s
+
+  def fmt(x):
+    c = "green" if x > 50 else "yellow" if x > 20 else "red"
+    return colored(f"{x:6.1f}", c)
+
+  # header
+  print(" " * 8 + " ".join(f"{'d'+str(j):>6}" for j in range(GPUS)))
+  # rows
+  for i in range(GPUS):
+    print(f"{'s'+str(i):>6} -> " + " ".join(fmt(x) for x in bw[i]))

tinygrad_repo/examples/tools/gpuburn.py

@@ -0,0 +1,15 @@
+from tinygrad import Tensor, Device, TinyJit, dtypes
+
+GPUS = Device[Device.DEFAULT].count()
+N = 6144
+
+@TinyJit
+def many_matmul(A, B):
+  out = A
+  for _ in range(8): out = out@B
+  return out
+
+if __name__ == "__main__":
+  A = Tensor.ones(GPUS, N, N, dtype=dtypes.half).shard(devices=tuple([f"{Device.DEFAULT}:{i}" for i in range(GPUS)]), axis=0).contiguous()
+  B = Tensor.ones(GPUS, N, N, dtype=dtypes.half).shard(devices=tuple([f"{Device.DEFAULT}:{i}" for i in range(GPUS)]), axis=0).contiguous()
+  while 1: many_matmul(A, B)