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Add the implementation of collect_results_gpu #291

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Add the implementation of collect_results_gpu #291

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16 changes: 14 additions & 2 deletions projects/mmdet3d_plugin/bevformer/apis/test.py
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Original file line number Diff line number Diff line change
Expand Up @@ -42,7 +42,7 @@ def custom_encode_mask_results(mask_results):
dtype='uint8'))[0]) # encoded with RLE
return [encoded_mask_results]

def custom_multi_gpu_test(model, data_loader, tmpdir=None, gpu_collect=False):
def custom_multi_gpu_test(model, data_loader, tmpdir=None, gpu_collect=True):
"""Test model with multiple gpus.
This method tests model with multiple gpus and collects the results
under two different modes: gpu and cpu modes. By setting 'gpu_collect=True'
Expand Down Expand Up @@ -161,4 +161,16 @@ def collect_results_cpu(result_part, size, tmpdir=None):


def collect_results_gpu(result_part, size):
collect_results_cpu(result_part, size)
rank, world_size = get_dist_info()
if rank == 0:
results = [None for _ in range(world_size)]
else:
results = None
dist.gather_object(result_part, object_gather_list=results, dst=0)
if rank == 0:
ordered_results = []
for res in results:
ordered_results.extend(res)
return ordered_results[:size]
else:
return None