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More explict sharding methods for device memory (#4396)

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* Rename the Reshard method to Shard

* Add a new Reshard method for sharding a vector that's already sharded
This commit is contained in:
Rong Ou
2019-04-30 16:47:23 -07:00
committed by Rory Mitchell
parent 797ba8e72d
commit eaab364a63
12 changed files with 154 additions and 77 deletions
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6
src/metric/elementwise_metric.cu
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@@ -111,9 +111,9 @@ class ElementWiseMetricsReduction {
allocators_.clear();
allocators_.resize(devices.Size());
}
preds.Reshard(devices);
labels.Reshard(devices);
weights.Reshard(devices);
preds.Shard(devices);
labels.Shard(devices);
weights.Shard(devices);
std::vector<PackedReduceResult> res_per_device(devices.Size());
#pragma omp parallel for schedule(static, 1) if (devices.Size() > 1)

6
src/metric/multiclass_metric.cu
View File

@@ -134,9 +134,9 @@ class MultiClassMetricsReduction {
allocators_.clear();
allocators_.resize(devices.Size());
}
preds.Reshard(GPUDistribution::Granular(devices, n_class));
labels.Reshard(devices);
weights.Reshard(devices);
preds.Shard(GPUDistribution::Granular(devices, n_class));
labels.Shard(devices);
weights.Shard(devices);
std::vector<PackedReduceResult> res_per_device(devices.Size());
#pragma omp parallel for schedule(static, 1) if (devices.Size() > 1)