distributed

torchtitan Use this subcategory for all discussions related to end to end composability of distributed technologies using torchtitan. distributed-rpc

Topic	Replies	Views	Activity
About the distributed category distributed	2	2931	November 28, 2025
Fix gradient accumulation for DDP with static graph and no sync distributed	0	60	July 11, 2026
Weights dont sychronise in multi GPU training distributed	7	175	July 9, 2026
How to train PyTorch model on multiple CPU nodes (SLURM)? distributed	2	240	May 22, 2026
[Distributed w/ TorchTitan] Introducing Async Tensor Parallelism in PyTorch torchtitan	13	19612	May 19, 2026
FSDP2 - inspecting parameter sharding distributed	0	60	May 14, 2026
Help with DDP in kaggle notebook distributed	3	448	May 14, 2026
PyTorch Distributed (Gloo) fails with system error: 10049 - The requested address is not valid in its context distributed	0	91	May 7, 2026
[c10d] The hostname of the client socket cannot be retrieved. err=-3 distributed	0	167	May 2, 2026
[Distributed w/ TorchTitan] Breaking Barriers: Training Long Context LLMs with 1M Sequence Length in PyTorch Using Context Parallel torchtitan	13	11447	April 22, 2026
`AveragedModel` and FSDP2 torchtitan	0	53	April 15, 2026
Transfer data GPU -> CPU and compute on GPU in parallel distributed	6	346	March 24, 2026
Qlora+fsdp2 training distributed	0	77	March 15, 2026
Parallel Training with INVIDIA MIG's distributed	8	5772	March 9, 2026
Balanced batch sampling with DistributedSampler/DDP distributed	1	99	March 4, 2026
PersistentTensorDict send data to GPU without blocking the computations distributed	0	53	March 4, 2026
Potential issue of "errno: 98- Address already in use" error in DDP (with torchrun) distributed	2	1086	February 25, 2026
[Solved] RTX 5090 (sm_120) Training Segfault - DDP Was the Cause distributed	4	692	February 25, 2026
Question About Backward–ReduceScatter Overlap in FSDP Figure 5 distributed	2	121	February 17, 2026
Is torch Muon optimizer compatible with FSDP/HSDP? distributed	1	185	February 12, 2026
Fully_shard with 2D mesh (4,1) still runs all-gather / reduce-scatter on the shard dimension distributed	0	59	February 5, 2026
FSDP2 post backward hook registration distributed	2	127	January 31, 2026
FSDP: Can users control which parameters are offloaded to CPU? distributed	0	101	January 30, 2026
Difference between torch.cuda.synchronize() and dist.barrier() distributed	3	5003	January 29, 2026
Runtime error raised in DDP when using .detach() to skip gradient computation in some DP ranks distributed	2	120	January 28, 2026
FSDP2 vs DDP gradient mismatch on Embeddings (Flex Attention + Compile) distributed	0	144	January 27, 2026
Multi GPU training on single node with DistributedDataParallel distributed	3	5555	January 27, 2026
8xH100 training issue distributed	4	235	January 20, 2026
DDP doesn't run unless TORCH_DISTRIBUTED_DEBUG=DETAIL is enabled distributed	1	143	January 15, 2026
Can multiprocessing.Lock / Condition be used with torchrun? distributed	1	86	January 11, 2026