From 98f9313af0fad8c3571a856a2df54e719dc96b37 Mon Sep 17 00:00:00 2001 From: Glenn Jocher Date: Wed, 16 Feb 2022 14:50:37 +0100 Subject: [PATCH] Validate with 2x `--workers` single-GPU/CPU fix (#6659) Fix for #6658 for single-GPU and CPU training use cases --- utils/datasets.py | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/utils/datasets.py b/utils/datasets.py index b22603ba9924..a89edb861658 100755 --- a/utils/datasets.py +++ b/utils/datasets.py @@ -110,7 +110,7 @@ def create_dataloader(path, imgsz, batch_size, stride, single_cls=False, hyp=Non batch_size = min(batch_size, len(dataset)) nd = torch.cuda.device_count() # number of CUDA devices - nw = min([2 * os.cpu_count() // max(nd, 1), batch_size if batch_size > 1 else 0, workers]) # number of workers + nw = min([os.cpu_count() // max(nd / 2, 1), batch_size if batch_size > 1 else 0, workers]) # number of workers sampler = None if rank == -1 else distributed.DistributedSampler(dataset, shuffle=shuffle) loader = DataLoader if image_weights else InfiniteDataLoader # only DataLoader allows for attribute updates return loader(dataset,