sunnypilot v2026.002.000

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

tinygrad_repo/test/unit/test_setitem_schedule.py

@@ -0,0 +1,149 @@
+import unittest
+from tinygrad import Tensor, dtypes, GlobalCounters
+
+class TestSetitemInto(unittest.TestCase):
+  def test_setitem_into_unrealized(self):
+    GlobalCounters.reset()
+    t = Tensor.arange(4, dtype=dtypes.int32).reshape(2, 2)
+    self.assertEqual(GlobalCounters.kernel_count, 0)
+    t[1] = 5
+    self.assertEqual(GlobalCounters.kernel_count, 0)
+    t.realize()
+    self.assertEqual(GlobalCounters.kernel_count, 1)
+    self.assertEqual(GlobalCounters.global_mem, 16)
+    t[1].realize()
+    t.realize()
+    self.assertEqual(GlobalCounters.kernel_count, 1)
+    self.assertListEqual(t.tolist(), [[0, 1], [5, 5]])
+
+  def test_setitem_into_unrealized_sliced_compute(self):
+    # base computation contains SHRINK from prior slicing (like QR decomposition pattern)
+    GlobalCounters.reset()
+    a = Tensor.arange(8, dtype=dtypes.int32).reshape(2, 4)
+    w = a[0] + a[1]  # unrealized ADD with SHRINK in graph: [4, 6, 8, 10]
+    self.assertEqual(GlobalCounters.kernel_count, 0)
+    w[1] = 99
+    self.assertEqual(GlobalCounters.kernel_count, 0)
+    w.realize()
+    self.assertEqual(GlobalCounters.kernel_count, 1)
+    self.assertEqual(GlobalCounters.global_mem, 4*4)
+    self.assertListEqual(w.tolist(), [4, 99, 8, 10])
+
+  def test_setitem_into_empty(self):
+    GlobalCounters.reset()
+    t = Tensor.empty(4, dtype=dtypes.int32)
+    t[1] = 5
+    self.assertEqual(GlobalCounters.kernel_count, 0)
+    t.realize()
+    self.assertEqual(GlobalCounters.kernel_count, 1)
+    self.assertEqual(GlobalCounters.global_mem, 4)
+    t[1].realize()
+    t.realize()
+    self.assertEqual(GlobalCounters.kernel_count, 1)
+    self.assertEqual(t[1].item(), 5)
+
+  def test_setitem_into_empty_alu(self):
+    GlobalCounters.reset()
+    t = Tensor.empty(4, dtype=dtypes.int32) + 1
+    self.assertEqual(GlobalCounters.kernel_count, 0)
+    t[1] = 5
+    self.assertEqual(GlobalCounters.kernel_count, 0)
+    t.realize()
+    self.assertEqual(GlobalCounters.kernel_count, 1)
+    self.assertEqual(GlobalCounters.global_mem, 4*(3*2+1)) # 3 elements had +1, 1 is assigned directly
+    t[1].realize()
+    t.realize()
+    self.assertEqual(GlobalCounters.kernel_count, 1)
+    self.assertEqual(t[1].item(), 5)
+
+  def test_setitem_into_tensor(self):
+    t = Tensor([1, 2, 3, 4], dtype=dtypes.int32).realize()
+    GlobalCounters.reset()
+    t[1] = 5
+    self.assertEqual(GlobalCounters.kernel_count, 0)
+    t[1].realize()
+    self.assertEqual(GlobalCounters.kernel_count, 1)
+    self.assertEqual(GlobalCounters.global_mem, 4)
+    t.realize()
+    self.assertEqual(GlobalCounters.kernel_count, 1)
+    self.assertListEqual(t.tolist(), [1, 5, 3, 4])
+
+  def test_setitem_into_tensor_alu(self):
+    t = Tensor([1, 2, 3, 4], dtype=dtypes.int32).realize() + 1
+    GlobalCounters.reset()
+    t[1] = 5
+    self.assertEqual(GlobalCounters.kernel_count, 0)
+    t[1].realize()
+    self.assertEqual(GlobalCounters.kernel_count, 1)
+    self.assertEqual(GlobalCounters.global_mem, 4*(3*2+1)) # 3 elements had +1, 1 is assigned directly
+    t[1].realize()
+    t.realize()
+    self.assertEqual(GlobalCounters.kernel_count, 1)
+    self.assertListEqual(t.tolist(), [2, 5, 4, 5])
+
+  def test_setitem_into_cont(self):
+    GlobalCounters.reset()
+    t = Tensor.ones(4, dtype=dtypes.int32)
+    t[1] = 5
+    self.assertEqual(GlobalCounters.kernel_count, 0)
+    t.realize()
+    self.assertEqual(GlobalCounters.kernel_count, 1)
+    self.assertEqual(GlobalCounters.global_mem, 4*4)
+    t[1].realize()
+    t.realize()
+    self.assertEqual(GlobalCounters.kernel_count, 1)
+    self.assertListEqual(t.tolist(), [1, 5, 1, 1])
+
+  def test_setitem_into_const_alu(self):
+    GlobalCounters.reset()
+    t = Tensor.ones(4, dtype=dtypes.int32) + 1
+    t[1] = 5
+    self.assertEqual(GlobalCounters.kernel_count, 0)
+    t.realize()
+    self.assertEqual(GlobalCounters.kernel_count, 1)
+    self.assertEqual(GlobalCounters.global_mem, 4*4)
+    t[1].realize()
+    t.realize()
+    self.assertEqual(GlobalCounters.kernel_count, 1)
+    self.assertListEqual(t.tolist(), [2, 5, 2, 2])
+
+  def test_setitem_into_arange(self):
+    # NOTE: arange has no real buffer, but assigning to it is fine
+    GlobalCounters.reset()
+    t = Tensor.arange(4, dtype=dtypes.int32)
+    t[1] = 5
+    self.assertEqual(GlobalCounters.kernel_count, 0)
+    t.realize()
+    self.assertEqual(GlobalCounters.kernel_count, 1)
+    self.assertListEqual(t.tolist(), [0, 5, 2, 3])
+
+  def test_setitem_slice_const(self):
+    t = Tensor.zeros(100, dtype=dtypes.int32).contiguous().realize()
+    GlobalCounters.reset()
+    t[20:50] = 3
+    self.assertEqual(GlobalCounters.kernel_count, 0)
+    t.realize()
+    self.assertEqual(GlobalCounters.kernel_count, 1)
+    self.assertEqual(GlobalCounters.global_mem, 30*4)  # 30 elements written
+
+  def test_setitem_slice_tensor(self):
+    t = Tensor.zeros(100, dtype=dtypes.int32).contiguous().realize()
+    v = Tensor.zeros(30, dtype=dtypes.int32).contiguous().realize()
+    GlobalCounters.reset()
+    t[20:50] = v
+    self.assertEqual(GlobalCounters.kernel_count, 0)
+    t.realize()
+    self.assertEqual(GlobalCounters.kernel_count, 1)
+    self.assertEqual(GlobalCounters.global_mem, 30*4*2)  # 30 read + 30 written
+
+  def test_setitem_full(self):
+    t = Tensor.zeros(100, dtype=dtypes.int32).contiguous().realize()
+    GlobalCounters.reset()
+    t[:] = 3
+    self.assertEqual(GlobalCounters.kernel_count, 0)
+    t.realize()
+    self.assertEqual(GlobalCounters.kernel_count, 1)
+    self.assertEqual(GlobalCounters.global_mem, 100*4)  # full buffer written
+
+if __name__ == '__main__':
+  unittest.main()