efee1712aa
* fix.. speed_limit error... * draw tpms settings. * fix.. traffic light stopping only.. * fix.. waze cam * fix.. waze... * add setting (Enable comma connect ) * auto detect LFA2 * fix.. cruisespeed1 * vff2 driving model. * fix.. * agnos 12.3 * fix.. * ff * ff * test * ff * fix.. drawTurnInfo.. * Update drive_helpers.py * fix.. support eng voice eng sounds fix settings... english fix.. mph.. fix.. roadlimit speed bug.. * new vff model.. 250608 * fix soundd.. * fix safe exit speed.. * fix.. sounds. * fix.. radar timeStep.. * KerryGold model * Update drive_helpers.py * fix.. model. * fix.. * fix.. * Revert "fix.." This reverts commit b09ec459afb855c533d47fd7e8a1a6b1a09466e7. * Revert "fix.." This reverts commit 290bec6b83a4554ca232d531a911edccf94a2156. * fix esim * add more acc table. 10kph * kg update.. * fix cruisebutton mode3 * test atc..cond. * fix.. canfd * fix.. angle control limit
136 lines
4.3 KiB
Python
136 lines
4.3 KiB
Python
# tinygrad is a tensor library, and as a tensor library it has multiple parts
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# 1. a "runtime". this allows buffer management, compilation, and running programs
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# 2. a "Device" that uses the runtime but specifies compute in an abstract way for all
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# 3. a "UOp" that fuses the compute into kernels, using memory only when needed
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# 4. a "Tensor" that provides an easy to use frontend with autograd ".backward()"
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print("******** first, the runtime ***********")
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from tinygrad.runtime.ops_cpu import ClangJITCompiler, MallocAllocator, CPUProgram
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# allocate some buffers
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out = MallocAllocator.alloc(4)
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a = MallocAllocator.alloc(4)
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b = MallocAllocator.alloc(4)
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# load in some values (little endian)
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MallocAllocator._copyin(a, memoryview(bytearray([2,0,0,0])))
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MallocAllocator._copyin(b, memoryview(bytearray([3,0,0,0])))
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# compile a program to a binary
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lib = ClangJITCompiler().compile("void add(int *out, int *a, int *b) { out[0] = a[0] + b[0]; }")
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# create a runtime for the program
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fxn = CPUProgram("add", lib)
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# run the program
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fxn(out, a, b)
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# check the data out
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print(val := MallocAllocator._as_buffer(out).cast("I").tolist()[0])
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assert val == 5
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print("******** second, the Device ***********")
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DEVICE = "CPU" # NOTE: you can change this!
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import struct
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from tinygrad.dtype import dtypes
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from tinygrad.device import Buffer, Device
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from tinygrad.uop.ops import UOp, Ops
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from tinygrad.shape.shapetracker import ShapeTracker
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# allocate some buffers + load in values
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out = Buffer(DEVICE, 1, dtypes.int32).allocate()
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a = Buffer(DEVICE, 1, dtypes.int32).allocate().copyin(memoryview(bytearray(struct.pack("I", 2))))
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b = Buffer(DEVICE, 1, dtypes.int32).allocate().copyin(memoryview(bytearray(struct.pack("I", 3))))
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# NOTE: a._buf is the same as the return from MallocAllocator.alloc
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# describe the computation
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buf_1 = UOp(Ops.DEFINE_GLOBAL, dtypes.int32.ptr(), (), 1)
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buf_2 = UOp(Ops.DEFINE_GLOBAL, dtypes.int32.ptr(), (), 2)
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ld_1 = UOp(Ops.LOAD, dtypes.int32, (buf_1, ShapeTracker.from_shape((1,)).to_uop()))
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ld_2 = UOp(Ops.LOAD, dtypes.int32, (buf_2, ShapeTracker.from_shape((1,)).to_uop()))
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alu = ld_1 + ld_2
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output_buf = UOp(Ops.DEFINE_GLOBAL, dtypes.int32.ptr(), (), 0)
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st_0 = UOp(Ops.STORE, dtypes.void, (output_buf, ShapeTracker.from_shape((1,)).to_uop(), alu))
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s = UOp(Ops.SINK, dtypes.void, (st_0,))
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# convert the computation to a "linearized" format (print the format)
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from tinygrad.engine.realize import get_kernel, CompiledRunner
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kernel = get_kernel(Device[DEVICE].renderer, s).linearize()
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# compile a program (and print the source)
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fxn = CompiledRunner(kernel.to_program())
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print(fxn.p.src)
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# NOTE: fxn.clprg is the CPUProgram
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# run the program
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fxn.exec([out, a, b])
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# check the data out
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assert out.as_buffer().cast('I')[0] == 5
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print("******** third, the UOp ***********")
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from tinygrad.engine.realize import run_schedule
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from tinygrad.engine.schedule import create_schedule_with_vars
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from tinygrad.engine.grouper import get_kernelize_map
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# allocate some values + load in values
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a = UOp.new_buffer(DEVICE, 1, dtypes.int32)
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b = UOp.new_buffer(DEVICE, 1, dtypes.int32)
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a.buffer.allocate().copyin(memoryview(bytearray(struct.pack("I", 2))))
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b.buffer.allocate().copyin(memoryview(bytearray(struct.pack("I", 3))))
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# describe the computation
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out = a + b
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s = UOp(Ops.SINK, dtypes.void, (out,))
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# group the computation into kernels
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becomes_map = get_kernelize_map(s)
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# the compute maps to an assign
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assign = becomes_map[a+b]
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# the first source is the output buffer (data)
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assert assign.src[0].op is Ops.BUFFER
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# the second source is the kernel (compute)
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assert assign.src[1].op is Ops.KERNEL
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# schedule the kernel graph in a linear list
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s = UOp(Ops.SINK, dtypes.void, (assign,))
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sched, _ = create_schedule_with_vars(s)
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assert len(sched) == 1
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# DEBUGGING: print the compute ast
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print(sched[-1].ast)
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# NOTE: sched[-1].ast is the same as st_0 above
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# the output will be stored in a new buffer
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out = assign.buf_uop
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assert out.op is Ops.BUFFER and not out.buffer.is_allocated()
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print(out)
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# run that schedule
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run_schedule(sched)
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# check the data out
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assert out.is_realized and out.buffer.as_buffer().cast('I')[0] == 5
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print("******** fourth, the Tensor ***********")
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from tinygrad import Tensor
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a = Tensor([2], dtype=dtypes.int32, device=DEVICE)
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b = Tensor([3], dtype=dtypes.int32, device=DEVICE)
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out = a + b
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# check the data out
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print(val:=out.item())
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assert val == 5
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