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Add virtual device metrics #4279

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merged 1 commit into from
Dec 7, 2022
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Add virtual device metrics #4279

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2 changes: 2 additions & 0 deletions torch_xla/csrc/init_python_bindings.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -1451,6 +1451,7 @@ void InitXlaModuleBindings(py::module m) {
m.def("_xla_mark_sharding", [](const at::Tensor& input,
const py::list& tile_assignment,
bool replicated = false, bool manual = false) {
TORCH_LAZY_COUNTER("XlaMarkSharding", 1);
xla::OpSharding sharding =
ShardingUtil::CreateOpSharding(tile_assignment, replicated, manual);
XLATensorPtr xtensor = bridge::GetXlaTensor(input);
Expand All @@ -1464,6 +1465,7 @@ void InitXlaModuleBindings(py::module m) {
at::Tensor cpu_tensor;
if (xla::sys_util::GetEnvBool("XLA_USE_SPMD", false) &&
xtensor->CurrentTensorData().has_value()) {
TORCH_LAZY_COUNTER("VirtualDeviceUsage", 1);
// When virtual device is enabled for SPMD, we defer the initial data
// transfer to the device and retain the original data on the host, until
// the sharded data transfer.
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