suport recompute for kunlun (#49069)

paddle/fluid/framework/details/bind_threaded_ssa_graph_executor.cc

@@ -254,9 +254,13 @@ void BindThreadedSSAGraphExecutor::RunMultiDeviceOpAsync(
         auto dev_ctxes = op->DeviceContext();
         auto &inputs = op->Inputs();
         for (auto &input : inputs) {
-          auto dev_ctxes = input->GeneratedOp()->DeviceContext();
-          for (auto &item : dev_ctxes) {
-            ((platform::XPUDeviceContext *)(item.second))->Wait();
+          if (input && input->GeneratedOp() != nullptr) {
+            auto dev_ctxes = input->GeneratedOp()->DeviceContext();
+            for (auto &item : dev_ctxes) {
+              ((platform::XPUDeviceContext *)(item.second))->Wait();
+            }
+          } else {
+            VLOG(3) << "No generated op:" << op->Name();
           }
         }
         op->Run(strategy_.use_device_);

paddle/fluid/framework/generator.cc

@@ -20,11 +20,43 @@ limitations under the License. */
 #include <utility>
 
 #include "paddle/fluid/platform/device/gpu/gpu_info.h"
+#include "paddle/fluid/platform/device/xpu/xpu_info.h"
 #include "paddle/fluid/platform/enforce.h"
 
 namespace paddle {
 namespace framework {
 
+const std::shared_ptr<Generator>& DefaultXPUGenerator(int64_t device_id) {
+#if defined(PADDLE_WITH_XPU)
+
+  static int64_t num_xpu_devices = -1;
+  static std::once_flag num_devices_init_flag;
+  static std::deque<std::once_flag> xpu_device_flags;
+  static std::vector<std::shared_ptr<Generator>> default_xpu_generators;
+
+  std::call_once(num_devices_init_flag, []() {
+    num_xpu_devices = paddle::platform::GetXPUDeviceCount();
+    xpu_device_flags.resize(num_xpu_devices);
+    default_xpu_generators.resize(num_xpu_devices);
+  });
+  if (device_id < 0) {
+    PADDLE_THROW(platform::errors::InvalidArgument(
+        "xpu device id shoule be greater than 0"));
+  }
+
+  std::call_once(xpu_device_flags[device_id], [device_id]() {
+    default_xpu_generators[device_id] =
+        std::make_shared<Generator>(GetRandomSeed(), device_id);
+    VLOG(4) << "initial seed: "
+            << default_xpu_generators[device_id]->GetCurrentSeed();
+  });
+  return default_xpu_generators[device_id];
+#else
+  PADDLE_THROW(platform::errors::PermissionDenied(
+      "getDefaultXPUGenerator only support in XPU place"));
+#endif
+}
+
 const std::shared_ptr<Generator>& DefaultCUDAGenerator(int64_t device_id) {
 #if defined(PADDLE_WITH_CUDA) || defined(PADDLE_WITH_HIP)
 

paddle/fluid/framework/generator.h

@@ -107,6 +107,8 @@ const std::shared_ptr<Generator>& DefaultCPUGenerator();
 
 const std::shared_ptr<Generator>& DefaultCUDAGenerator(int64_t device_id = -1);
 
+const std::shared_ptr<Generator>& DefaultXPUGenerator(int64_t device_id = -1);
+
 std::shared_ptr<std::mt19937_64> GetCPURandomEngine(uint64_t);
 
 const std::shared_ptr<Generator>& SetRandomSeedGenerator(

paddle/fluid/platform/device_context.cc

@@ -170,6 +170,13 @@ std::unique_ptr<DeviceContext> CreateDeviceContext(
     cuda_ctx->PartialInitWithAllocator();
     dev_ctx->SetGenerator(
         framework::DefaultCUDAGenerator(p.GetDeviceId()).get());
+#endif
+  } else if (is_xpu_place(p)) {
+#if defined(PADDLE_WITH_XPU)
+    dev_ctx->SetAllocator(
+        memory::allocation::AllocatorFacade::Instance().GetAllocator(p).get());
+    dev_ctx->SetGenerator(
+        framework::DefaultXPUGenerator(p.GetDeviceId()).get());
 #endif
   } else {
     dev_ctx->SetAllocator(

paddle/fluid/pybind/generator_py.cc

@@ -90,6 +90,7 @@ void BindGenerator(py::module* m_ptr) {
       .def("random", &framework::Generator::Random64);
   m.def("default_cpu_generator", &framework::DefaultCPUGenerator);
   m.def("default_cuda_generator", &framework::DefaultCUDAGenerator);
+  m.def("default_xpu_generator", &framework::DefaultXPUGenerator);
   m.def("set_random_seed_generator", &framework::SetRandomSeedGenerator);
   m.def("get_random_seed_generator", &framework::GetRandomSeedGenerator);
 }

paddle/phi/kernels/xpu/dropout_kernel.cc

@@ -58,6 +58,9 @@ void DropoutRawKernel(const Context& dev_ctx,
     } else {
       seed_data = fix_seed ? seed : 0;
     }
+    if (seed_data == 0) {
+      seed_data = dev_ctx.GetGenerator()->Random64();
+    }
 
     auto* mask_data = dev_ctx.template Alloc<T>(mask);
     // Special case when dropout_prob is 1.0

python/paddle/__init__.py

@@ -327,6 +327,8 @@ from .tensor.einsum import einsum  # noqa: F401
 from .framework.random import seed  # noqa: F401
 from .framework.random import get_cuda_rng_state  # noqa: F401
 from .framework.random import set_cuda_rng_state  # noqa: F401
+from .framework.random import get_rng_state  # noqa: F401
+from .framework.random import set_rng_state  # noqa: F401
 from .framework import ParamAttr  # noqa: F401
 from .framework import CPUPlace  # noqa: F401
 from .framework import IPUPlace  # noqa: F401
@@ -424,6 +426,7 @@ __all__ = [  # noqa
     'save',
     'multinomial',
     'get_cuda_rng_state',
+    'get_rng_state',
     'rank',
     'empty_like',
     'eye',
@@ -606,6 +609,7 @@ __all__ = [  # noqa
     'unique',
     'unique_consecutive',
     'set_cuda_rng_state',
+    'set_rng_state',
     'set_printoptions',
     'std',
     'flatten',

python/paddle/distributed/fleet/recompute/recompute.py

@@ -56,16 +56,15 @@ def check_recompute_necessary(inputs):
 
 @contextlib.contextmanager
 def swith_rng_state_tracker(rng_state, tracker):
-    orig_cuda_rng_state = paddle.get_cuda_rng_state()
-    orig_cuda_rng_tracker = get_rng_state_tracker().get_states_tracker()
-
-    paddle.set_cuda_rng_state(rng_state)
+    orig_rng_state = paddle.get_rng_state()
+    orig_rng_tracker = get_rng_state_tracker().get_states_tracker()
+    paddle.set_rng_state(rng_state)
     get_rng_state_tracker().set_states_tracker(tracker)
     try:
         yield
     finally:
-        paddle.set_cuda_rng_state(orig_cuda_rng_state)
-        get_rng_state_tracker().set_states_tracker(orig_cuda_rng_tracker)
+        paddle.set_rng_state(orig_rng_state)
+        get_rng_state_tracker().set_states_tracker(orig_rng_tracker)
 
 
 class LegacyRecomputeFunction(LegacyPyLayer):
@@ -95,15 +94,8 @@ class LegacyRecomputeFunction(LegacyPyLayer):
         # NOTE recompute with restore RNG only support one senario where one process for one cuda gpu.
         # one process with multiple gpu and mix-gpu-cpu senarios are not support
         if ctx.preserve_rng_state:
-            cur_device = paddle.get_device()
-            if 'gpu:' not in cur_device:
-                raise RuntimeError(
-                    "Recompute with RNG perserve is not support current device: {}.".format(
-                        cur_device
-                    )
-                )
-            ctx.fw_cuda_rng_state = paddle.get_cuda_rng_state()
-            ctx.fwd_cuda_rng_state_tracker = (
+            ctx.fw_rng_state = paddle.get_rng_state()
+            ctx.fwd_rng_state_tracker = (
                 get_rng_state_tracker().get_states_tracker()
             )
 
@@ -156,7 +148,7 @@ class LegacyRecomputeFunction(LegacyPyLayer):
             # need restore auto_cast state as well as w/b list
             if ctx.preserve_rng_state:
                 with swith_rng_state_tracker(
-                    ctx.fw_cuda_rng_state, ctx.fwd_cuda_rng_state_tracker
+                    ctx.fw_rng_state, ctx.fwd_rng_state_tracker
                 ):
                     with paddle.amp.auto_cast(
                         enable=ctx.is_fw_autocast,
@@ -244,15 +236,8 @@ class RecomputeFunction(PyLayer):
         # NOTE recompute with restore RNG only support one senario where one process for one cuda gpu.
         # one process with multiple gpu and mix-gpu-cpu senarios are not support
         if ctx.preserve_rng_state:
-            cur_device = paddle.get_device()
-            if 'gpu:' not in cur_device:
-                raise RuntimeError(
-                    "Recompute with RNG perserve is not support current device: {}.".format(
-                        cur_device
-                    )
-                )
-            ctx.fw_cuda_rng_state = paddle.get_cuda_rng_state()
-            ctx.fwd_cuda_rng_state_tracker = (
+            ctx.fw_rng_state = paddle.get_rng_state()
+            ctx.fwd_rng_state_tracker = (
                 get_rng_state_tracker().get_states_tracker()
             )
 
@@ -305,7 +290,7 @@ class RecomputeFunction(PyLayer):
             # need restore auto_cast state as well as w/b list
             if ctx.preserve_rng_state:
                 with swith_rng_state_tracker(
-                    ctx.fw_cuda_rng_state, ctx.fwd_cuda_rng_state_tracker
+                    ctx.fw_rng_state, ctx.fwd_rng_state_tracker
                 ):
                     with paddle.amp.auto_cast(
                         enable=ctx.is_fw_autocast,

python/paddle/fluid/tests/unittests/collective/fleet/test_dygraph_recompute_for_eager.py

@@ -312,15 +312,6 @@ class TestRecompute(unittest.TestCase):
             recompute_block=[2], recompute_kwargs=kwargs
         )
 
-    def test_recompute_cpu_rng(self):
-        paddle.set_device("cpu")
-        for flag in [True, False]:
-            with self.assertRaises(RuntimeError):
-                loss_ref, param_ref, grad_ref = run_model(
-                    recompute_block=[2],
-                    recompute_kwargs={"use_reentrant": flag},
-                )
-
 
 if __name__ == '__main__':
     unittest.main()

python/paddle/fluid/tests/unittests/xpu/test_recompute_op_xpu.py

+# Copyright (c) 2022 PaddlePaddle Authors. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import random
+
+import numpy as np
+
+import paddle
+from paddle.distributed.fleet.utils import recompute
+
+
+def get_fc_block(block_idx, input_size, is_last=False):
+    block_name = "block_" + str(block_idx)
+    block = paddle.nn.Sequential(
+        (
+            block_name + "_fc_0",
+            paddle.nn.Linear(input_size, input_size, bias_attr=False),
+        ),
+        (block_name + "_dropout", paddle.nn.Dropout(p=0.5)),
+        (block_name + "_relu_1", paddle.nn.ReLU()),
+        (
+            block_name + "_fc_1",
+            paddle.nn.Linear(input_size, input_size, bias_attr=False),
+        ),
+        (block_name + "_relu_2", paddle.nn.ReLU()),
+    )
+    if is_last:
+        block.add_sublayer(
+            block_name + "_fc_2",
+            paddle.nn.Linear(input_size, 1, bias_attr=False),
+        )
+    else:
+        block.add_sublayer(
+            block_name + "_fc_2",
+            paddle.nn.Linear(input_size, input_size, bias_attr=False),
+        )
+    return block
+
+
+class Naive_fc_net(paddle.nn.Layer):
+    def __init__(
+        self, input_size=10, recompute_blocks=[1, 3], recompute_kwargs={}
+    ):
+        super(Naive_fc_net, self).__init__()
+        self.recompute_blocks = recompute_blocks
+        self.recompute_kwargs = recompute_kwargs
+        self.runfunc0 = get_fc_block(0, input_size, is_last=False)
+        self.runfunc1 = get_fc_block(1, input_size, is_last=False)
+        self.runfunc2 = get_fc_block(2, input_size, is_last=False)
+        self.runfunc3 = get_fc_block(3, input_size, is_last=False)
+        self.runfunc4 = get_fc_block(4, input_size, is_last=True)
+        self.total_func = [
+            self.runfunc0,
+            self.runfunc1,
+            self.runfunc2,
+            self.runfunc3,
+            self.runfunc4,
+        ]
+
+    def forward(self, inputs):
+        nums = len(self.total_func)
+        for i in range(nums):
+            if i in self.recompute_blocks:
+                inputs = recompute(
+                    self.total_func[i], inputs, **{"preserve_rng_state": True}
+                )
+            else:
+                inputs = self.total_func[i](inputs)
+        return inputs
+
+
+def run_model(xpu_state, recompute_block=[], recompute_kwargs={}):
+    gen = paddle.seed(10)
+    random.seed(10)
+    batch_size, input_size = 1, 10
+    model = Naive_fc_net(
+        input_size,
+        recompute_blocks=recompute_block,
+        recompute_kwargs=recompute_kwargs,
+    )
+    optimizer = paddle.optimizer.SGD(
+        learning_rate=0.01, parameters=model.parameters()
+    )
+    loss_ = []
+    param_ = []
+    grad_ = []
+    for _ in range(5):
+        x = paddle.rand(shape=[batch_size, input_size], dtype="float32")
+        y_pred = model(x)
+        loss = y_pred.mean()
+        loss_.append(loss.item())
+        loss.backward()
+        optimizer.step()
+        param_.append(model.parameters()[9])
+        grad_.append(model.parameters()[3]._grad_ivar())
+        optimizer.clear_grad()
+    return loss_, param_, grad_
+
+
+xpu_state = paddle.get_rng_state()
+# without recompute
+loss_ref, param_ref, grad_ref = run_model(xpu_state, recompute_block=[])
+loss, param, grad = run_model(xpu_state, recompute_block=[1, 3])
+# The result of the recompute_loss should be the same as the normal_loss.
+np.testing.assert_allclose(loss_ref, loss, rtol=1e-05, atol=1e-05)

python/paddle/framework/random.py

@@ -45,10 +45,51 @@ def seed(seed):
     if core.is_compiled_with_cuda():
         for i in range(core.get_cuda_device_count()):
             core.default_cuda_generator(i).manual_seed(seed)
+    elif core.is_compiled_with_xpu():
+        for i in range(core.get_xpu_device_count()):
+            core.default_xpu_generator(i).manual_seed(seed)
 
     return core.default_cpu_generator().manual_seed(seed)
 
 
+def get_rng_state(device=None):
+    """
+    Get all random states of random generators of specified device.
+    Args:
+        device(str): This parameter determines the specific running device.
+            It can be ``cpu``, ``gpu``, ``xpu``, Default is None.
+            If None, return the generators of current device (specified by ``set_device``).
+    Returns:
+        GeneratorState:  object.
+    Examples:
+        .. code-block:: python
+            import paddle
+            sts = paddle.get_rng_state()
+    """
+    state_list = []
+    if device is None:
+        place = fluid.framework._current_expected_place()
+    else:
+        place = device._convert_to_place(device)
+
+    if isinstance(place, core.CPUPlace):
+        state_list.append(core.default_cpu_generator().get_state())
+    elif isinstance(place, core.CUDAPlace):
+        for i in range(core.get_cuda_device_count()):
+            state_list.append(core.default_cuda_generator(i).get_state())
+    elif isinstance(place, core.XPUPlace):
+        for i in range(core.get_xpu_device_count()):
+            state_list.append(core.default_xpu_generator(i).get_state())
+    else:
+        raise ValueError(
+            "get_rng_state is not implemented for current device: {}".format(
+                place
+            )
+        )
+
+    return state_list
+
+
 def get_cuda_rng_state():
     """
 
@@ -75,6 +116,59 @@ def get_cuda_rng_state():
     return state_list
 
 
+def set_rng_state(state_list, device=None):
+    """
+
+    Sets generator state for all device generators.
+
+    Args:
+        state_list(list|tuple): The device states to set back to device generators. state_list is obtained from get_rng_state().
+        device(str): This parameter determines the specific running device.
+            It can be ``cpu``, ``gpu``, ``xpu``, Default is None.
+            If None, return the generators of current device (specified by ``set_device``).
+
+    Returns:
+        None.
+
+    Examples:
+        .. code-block:: python
+
+            import paddle
+            sts = paddle.get_rng_state()
+            paddle.set_rng_state(sts)
+
+    """
+    if device is None:
+        place = fluid.framework._current_expected_place()
+    else:
+        place = device._convert_to_place(device)
+
+    if isinstance(place, core.CUDAPlace):
+        if not len(state_list) == core.get_cuda_device_count():
+            raise ValueError(
+                "Length of gpu state list shoule be equal to the gpu device count"
+            )
+        for i in range(core.get_cuda_device_count()):
+            core.default_cuda_generator(i).set_state(state_list[i])
+    elif isinstance(place, core.XPUPlace):
+        if not len(state_list) == core.get_xpu_device_count():
+            raise ValueError(
+                "Length of xpu state list shoule be equal to the xpu device count"
+            )
+        for i in range(core.get_xpu_device_count()):
+            core.default_xpu_generator(i).set_state(state_list[i])
+    elif isinstance(place, core.CPUPlace):
+        if not len(state_list) == 1:
+            raise ValueError("Length of cpu state list shoule be equal to 1")
+        core.default_cpu_generator().set_state(state_list[0])
+    else:
+        raise ValueError(
+            "set_rng_state is not implemented for current device: {}".format(
+                place
+            )
+        )
+
+
 def set_cuda_rng_state(state_list):
     """