Skip to content

Issues: NVIDIA/nccl-tests

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

92 Open 139 Closed
92 Open 139 Closed
Author
Filter by author
Loading
Label
Filter by label
Loading
Use alt + click/return to exclude labels
or ⇧ + click/return for logical OR
Projects
Filter by project
Loading
Milestones
Filter by milestone
Loading
Assignee
Filter by who’s assigned
Sort
Sort by
Newest Oldest Most commented Least commented Recently updated Least recently updated Best match
Most reactions
👍 👎 😄 🎉 😕 ❤️ 🚀 👀

Issues list

Why is the NCCL test rate of my 4090x8 card so low?
#270 opened Nov 20, 2024 by gogoman010310
P2P performance with nccl-tests vs nvbandwidth
#268 opened Nov 19, 2024 by goelayu
how overall throughout calculate about all2all
#267 opened Nov 19, 2024 by ltm920716
2
question for NCCL write data size
#266 opened Nov 18, 2024 by gabbychen
4
Test CUDA failure common.cu:941 'system not yet initialized'
#264 opened Nov 7, 2024 by vijayaramaraju-kalidindi
6
Test CUDA failure common.cu:941 'invalid device ordinal' when test two nodes with nvhpc
#263 opened Nov 4, 2024 by heya5
3
Difference between in_place and out_of_place
#261 opened Nov 4, 2024 by 17113325
5
How to run nccl test in vm without nvswitch passthroughed?
#260 opened Oct 31, 2024 by joydchh
1
nccl-tests did not perform as expected
#257 opened Oct 15, 2024 by yalbaba
3
NCCL topology on the VM of H200
#256 opened Oct 10, 2024 by wangjiafu0310
4
BW test on V100 4 GPUS is not matched with InfiniBand EDR (Connect-X4)
#251 opened Sep 12, 2024 by javak87
Enable P2P on pcie in a nvlink machine
#250 opened Sep 9, 2024 by cll24
1
NCCL_Algo=Tree
#246 opened Aug 9, 2024 by afattaholman
1
What does dma_buf do when gpuDirectRdma is disabled ?
#245 opened Aug 2, 2024 by Pavani-Panakanti
1
AllReduce Bus Bandwidth decreases with larger network latency
#241 opened Jul 29, 2024 by chenzhu99
all_reduce algo factor for NVLink SHARP In network reductions
#238 opened Jul 23, 2024 by OrenLeung
how to calculate the tree based allreduce ib bw?
#237 opened Jul 22, 2024 by echobinarybytes
2 Node Nccl Test don’t work
#236 opened Jul 21, 2024 by SdEnd
7
How do we comprehend the factor between algBw and busBw?
#235 opened Jul 20, 2024 by lianghao208
5
What's multi-allreduce ?
#234 opened Jul 19, 2024 by ProHuper
1
what is cu:990 error? how to solve this problem?
#230 opened Jun 27, 2024 by MAKER-park
5
stepbytes (increment size) argument does not support 1M notation
#225 opened Jun 14, 2024 by StefanoSalsano
1
mpirun all_reduce_perf hang with multi-device test
#223 opened Jun 13, 2024 by 913871734
NCCL WARN Cannot use cuda/gdr transports as part of specified UCX_TLS
#222 opened Jun 7, 2024 by liuxingbo12138
5
1 GiB headroom might be too small
#220 opened May 31, 2024 by Namnamseo
ProTip! Exclude everything labeled bug with -label:bug.