Exemplo n.º 1
0
void DataChannelMPI::reduce(at::Tensor& data, THDReduceOp operation,
                            rank_type dst_rank, THDGroup group_id) {
  const auto& group_pair = _groups.at(group_id);
  const auto& comm = group_pair.first;
  if (comm == MPI_COMM_NULL)
    return;

  if (!data.is_contiguous())
    throw std::runtime_error("reduce input has to be contiguous");

  auto group_dst_rank = group_pair.second.mustGetGroupRank(dst_rank);
  void *sendbuf = (_rank == dst_rank) ? MPI_IN_PLACE    : data.data_ptr();
  void *recvbuf = (_rank == dst_rank) ? data.data_ptr() : nullptr;
  MPI_Reduce(sendbuf, recvbuf, data.numel(), mpi_datatype.at(data.type().scalarType()),
             mpi_op.at(operation), group_dst_rank, comm);
}
Exemplo n.º 2
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void DataChannelMPI::receive(at::Tensor& data, rank_type src_rank) {
  if (!data.is_contiguous())
    throw std::logic_error("tensor to receive is not contiguous");

  MPI_Recv(data.data_ptr(), data.numel(), mpi_datatype.at(data.type().scalarType()),
           src_rank, 0, MPI_COMM_WORLD, MPI_STATUS_IGNORE);
}
Exemplo n.º 3
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void DataChannelMPI::send(at::Tensor& data, rank_type dst_rank) {
  if (!data.is_contiguous())
    throw std::logic_error("tensor to send is not contiguous");

  MPI_Send(data.data_ptr(), data.numel(), mpi_datatype.at(data.type().scalarType()),
           dst_rank, 0, MPI_COMM_WORLD);
}
Exemplo n.º 4
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rank_type DataChannelMPI::receive(at::Tensor& data) {
  if (!data.is_contiguous())
    throw std::logic_error("tensor to receive is not contiguous");

  MPI_Status status;
  MPI_Recv(data.data_ptr(), data.numel(), mpi_datatype.at(data.type().scalarType()),
           MPI_ANY_SOURCE, 0, MPI_COMM_WORLD, &status);
  return status.MPI_SOURCE;
}
Exemplo n.º 5
0
void DataChannelMPI::allReduce(at::Tensor& data, THDReduceOp operation,
                               THDGroup group_id) {
  const auto& comm = _groups.at(group_id).first;
  if (comm == MPI_COMM_NULL)
    return;

  if (!data.is_contiguous())
    throw std::runtime_error("all_reduce input has to be contiguous");

  MPI_Allreduce(MPI_IN_PLACE, data.data_ptr(), data.numel(),
                mpi_datatype.at(data.type().scalarType()), mpi_op.at(operation), comm);
}
Exemplo n.º 6
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void DataChannelMPI::broadcast(at::Tensor& data, rank_type src_rank,
                               THDGroup group_id) {
  const auto& group_pair = _groups.at(group_id);
  const auto& comm = group_pair.first;
  if (comm == MPI_COMM_NULL)
    return;

  if (!data.is_contiguous())
    throw std::runtime_error("broadcast input has to be contiguous");

  rank_type group_src_rank = group_pair.second.mustGetGroupRank(src_rank);
  MPI_Bcast(data.data_ptr(), data.numel(), mpi_datatype.at(data.type().scalarType()),
            group_src_rank, comm);
}
Exemplo n.º 7
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void DataChannelMPI::scatter(std::vector<at::Tensor>& input,
                             at::Tensor& output,
                             rank_type src_rank, THDGroup group_id) {
  const auto& group_pair = _groups.at(group_id);
  const auto& comm = group_pair.first;
  if (comm == MPI_COMM_NULL)
    return;

  if (!output.is_contiguous())
    throw std::runtime_error("scatter output has to be a contiguous tensor");

  at::Tensor send_buffer;
  void *sendbuf = nullptr;
  if (_rank != src_rank) {
    if (input.size() > 0)
      throw std::logic_error("scatter: number of input tensors should be 0 for non root");
  } else {
    if (input.size() != group_pair.second.size())
      throw std::logic_error("scatter: number of input tensors and group size does not match");

    for (auto in_tensor : input)
      assertSameSizeAndType(in_tensor, output, "scatter");

    send_buffer = _newLikeFlat(input);
    for (size_t i = 0; i < input.size(); ++i)
      send_buffer[i].copy_(input[i]);
    sendbuf = send_buffer.data_ptr();
  }

  rank_type group_src_rank = group_pair.second.mustGetGroupRank(src_rank);

  MPI_Scatter(
    sendbuf, output.numel(), mpi_datatype.at(output.type().scalarType()),
    output.data_ptr(), output.numel(), mpi_datatype.at(output.type().scalarType()),
    group_src_rank, comm
  );
}
Exemplo n.º 8
0
at::Tensor mkldnn_convolution(
    const at::Tensor& input, const at::Tensor& weight, const at::Tensor& bias,
    IntList padding, IntList stride, IntList dilation)
{
  auto output = input.type().tensor(conv_output_size(
    input.sizes(), weight.sizes(), padding, stride, dilation));

  auto cpu_engine = CpuEngine::Instance().get_engine();
  
  int32_t n = input.size(0);
  int32_t ic = input.size(1);
  int32_t ih = input.size(2);
  int32_t iw = input.size(3);

  int32_t oc = output.size(1);
  int32_t oh = output.size(2);
  int32_t ow = output.size(3);

  int32_t kh = weight.size(2);
  int32_t kw = weight.size(3);

  int32_t sh = stride[0];
  int32_t sw = stride[1];
  int32_t ph = padding[0];
  int32_t pw = padding[1];

  auto data_t = memory::data_type::f32;
  auto format_any = memory::format::any;
  auto format_nchw = memory::format::nchw;
  auto format_oihw = memory::format::oihw;
  auto format_x = memory::format::x;

  memory::dims input_tz = {n, ic, ih, iw};
  memory::dims weight_tz = {oc, ic, kh, kw};
  memory::dims bias_tz = {oc};
  memory::dims output_tz = {n, oc, oh, ow};
  memory::dims _stride = {sh, sw};
  memory::dims _padding = {ph, pw};

  auto input_md = memory::desc({input_tz}, data_t, format_any);
  auto weight_md = memory::desc({weight_tz}, data_t, format_any);
  auto bias_md = memory::desc({bias_tz}, data_t, format_any);
  auto output_md = memory::desc({output_tz}, data_t, format_any);

  std::shared_ptr<convolution_forward::desc> conv_forward_desc;
  if (bias.defined()) {
    conv_forward_desc.reset(new convolution_forward::desc(prop_kind::forward,
      convolution_direct, input_md, weight_md, bias_md, output_md,
      _stride, _padding, _padding, padding_kind::zero));
  } else {
    conv_forward_desc.reset(new convolution_forward::desc(prop_kind::forward,
      convolution_direct, input_md, weight_md, output_md,
      _stride, _padding, _padding, padding_kind::zero));
  }

  std::shared_ptr<convolution_forward::primitive_desc> conv_forward_pd;
  conv_forward_pd.reset(new convolution_forward::primitive_desc(
    *conv_forward_desc, cpu_engine));

  auto input_usr_memory = memory({{{input_tz}, data_t, format_nchw}, cpu_engine},
    input.data_ptr());
  auto weight_usr_memory = memory({{{weight_tz}, data_t,  format_oihw}, cpu_engine},
    weight.data_ptr());
  auto output_usr_memory = memory({{{output_tz}, data_t, format_nchw}, cpu_engine},
    output.data_ptr());

  std::vector<primitive> net;

  auto input_pd = conv_forward_pd->src_primitive_desc();
  auto input_memory = input_usr_memory;
  if (input_usr_memory.get_primitive_desc() != memory::primitive_desc(input_pd)) {
    input_memory = memory(input_pd);
    net.push_back(reorder(input_usr_memory, input_memory));
  }

  auto weight_pd = conv_forward_pd->weights_primitive_desc();
  auto weight_memory = weight_usr_memory;
  if (weight_usr_memory.get_primitive_desc() != memory::primitive_desc(weight_pd)) {
    weight_memory = memory(weight_pd);
    net.push_back(reorder(weight_usr_memory, weight_memory));
  }

  auto output_pd = conv_forward_pd->dst_primitive_desc();
  auto output_memory = output_usr_memory;
  if (output_usr_memory.get_primitive_desc() != memory::primitive_desc(output_pd)) {
    output_memory = memory(output_pd);
  }

  std::shared_ptr<convolution_forward> conv_forward;
  std::shared_ptr<memory> bias_usr_memory;
  if (bias.defined()) {
    bias_usr_memory.reset(new memory({{{bias_tz}, data_t, format_x}, cpu_engine},
      bias.data_ptr()));
    conv_forward.reset(new convolution_forward(*conv_forward_pd, input_memory,
      weight_memory, *bias_usr_memory, output_memory));
  } else {
    conv_forward.reset(new convolution_forward(*conv_forward_pd, input_memory,
      weight_memory, output_memory));
  }
  net.push_back(*conv_forward);

  if (output_memory != output_usr_memory) {
    net.push_back(reorder(output_memory, output_usr_memory));
  }

  Stream::Instance().get_stream().submit(net);

  return output;
}
Exemplo n.º 9
0
std::tuple<at::Tensor, at::Tensor> mkldnn_convolution_backward_weights(
    IntList weight_size, const at::Tensor& grad_output, const at::Tensor& input,
    IntList padding, IntList stride, IntList dilation, bool bias_defined)
{
  auto grad_weight = grad_output.type().tensor(weight_size);

  Tensor grad_bias;
  if (bias_defined) {
    grad_bias = grad_output.type().tensor({grad_output.size(1)});
  }

  auto cpu_engine = CpuEngine::Instance().get_engine();

  int32_t n = input.size(0);
  int32_t ic = input.size(1);
  int32_t ih = input.size(2);
  int32_t iw = input.size(3);

  int32_t oc = grad_output.size(1);
  int32_t oh = grad_output.size(2);
  int32_t ow = grad_output.size(3);

  int32_t kh = grad_weight.size(2);
  int32_t kw = grad_weight.size(3);

  int32_t sh = stride[0];
  int32_t sw = stride[1];
  int32_t ph = padding[0];
  int32_t pw = padding[1];

  auto data_t = memory::data_type::f32;
  auto format_any = memory::format::any;
  auto format_nchw = memory::format::nchw;
  auto format_oihw = memory::format::oihw;
  auto format_x = memory::format::x;

  memory::dims input_tz = {n, ic, ih, iw};
  memory::dims weight_tz = {oc, ic, kh, kw};
  memory::dims bias_tz = {oc};
  memory::dims output_tz = {n, oc, oh, ow};
  memory::dims _stride = {sh, sw};
  memory::dims _padding = {ph, pw};

  memory::desc input_md({input_tz}, data_t, format_any);
  memory::desc weight_md({weight_tz}, data_t, format_any);
  memory::desc bias_md({bias_tz}, data_t, format_any);
  memory::desc output_md({output_tz}, data_t, format_any);

  // need to re-create conv_forward_pd to feed conv_backward_weight_pd
  std::shared_ptr<convolution_forward::desc> conv_forward_desc;
  if (bias_defined) {
    conv_forward_desc.reset(new convolution_forward::desc(prop_kind::forward,
      convolution_direct, input_md, weight_md, bias_md, output_md,
      _stride, _padding, _padding, padding_kind::zero));
  } else {
    conv_forward_desc.reset(new convolution_forward::desc(prop_kind::forward,
      convolution_direct, input_md, weight_md, output_md,
      _stride, _padding, _padding, padding_kind::zero));
  }

  std::shared_ptr<convolution_forward::primitive_desc> conv_forward_pd;
  conv_forward_pd.reset(new convolution_forward::primitive_desc(
    *conv_forward_desc, cpu_engine));

  std::shared_ptr<convolution_backward_weights::desc> conv_backward_weight_desc;
  if (bias_defined) {
    conv_backward_weight_desc.reset(new convolution_backward_weights::desc(
      convolution_direct, input_md, weight_md, bias_md, output_md,
      _stride, _padding, _padding, padding_kind::zero));
  } else {
    conv_backward_weight_desc.reset(new convolution_backward_weights::desc(
      convolution_direct, input_md, weight_md, output_md,
      _stride, _padding, _padding, padding_kind::zero));
  }

  std::shared_ptr<convolution_backward_weights::primitive_desc> conv_backward_weight_pd;
  conv_backward_weight_pd.reset(new convolution_backward_weights::primitive_desc(
    *conv_backward_weight_desc, cpu_engine, *conv_forward_pd));

  auto input_usr_memory = memory({{{input_tz}, data_t, format_nchw}, cpu_engine},
    input.data_ptr());
  auto grad_output_usr_memory = memory({{{output_tz}, data_t, format_nchw}, cpu_engine},
    grad_output.data_ptr());
  auto grad_weight_usr_memory = memory({{{weight_tz}, data_t, format_oihw}, cpu_engine},
    grad_weight.data_ptr());
  std::shared_ptr<memory> grad_bias_memory;

  std::vector<primitive> net;

  auto input_pd = conv_backward_weight_pd->src_primitive_desc();
  auto input_memory = input_usr_memory;
  if (input_usr_memory.get_primitive_desc() != memory::primitive_desc(input_pd)) {
    input_memory = memory(input_pd);
    net.push_back(reorder(input_usr_memory, input_memory));
  }

  auto grad_output_pd = conv_backward_weight_pd->diff_dst_primitive_desc();
  auto grad_output_memory = grad_output_usr_memory;
  if (grad_output_usr_memory.get_primitive_desc() != memory::primitive_desc(grad_output_pd)) {
    grad_output_memory = memory(grad_output_pd);
    net.push_back(reorder(grad_output_usr_memory, grad_output_memory));
  }

  auto grad_weight_pd = conv_backward_weight_pd->diff_weights_primitive_desc();
  auto grad_weight_memory = grad_weight_usr_memory;
  if (grad_weight_usr_memory.get_primitive_desc() != memory::primitive_desc(grad_weight_pd)) {
    grad_weight_memory = memory(grad_weight_pd);
  }

  std::shared_ptr<convolution_backward_weights> conv_backward_weight;
  if (bias_defined) {
    grad_bias_memory.reset(new memory({{{bias_tz}, data_t, format_x}, cpu_engine},
      grad_bias.data_ptr()));
    conv_backward_weight.reset(new convolution_backward_weights(*conv_backward_weight_pd,
      input_memory, grad_output_memory, grad_weight_memory, *grad_bias_memory));
  } else {
    conv_backward_weight.reset(new convolution_backward_weights(*conv_backward_weight_pd,
      input_memory, grad_output_memory, grad_weight_memory));
  }

  net.push_back(*conv_backward_weight);

  if (grad_weight_memory != grad_weight_usr_memory) {
    net.push_back(reorder(grad_weight_memory, grad_weight_usr_memory));
  }

  Stream::Instance().get_stream().submit(net);

  return std::tuple<at::Tensor, at::Tensor>{grad_weight, grad_bias};
}