Idanwo ti o sopọ mọ itọsọna · Lile Ipele
Akopọ Communication ati NCCL adanwo
Test all-reduce, all-gather, broadcast and reduce-scatter roles, NCCL identity, network offloads, and a small sum-reduction example.
Ibeere 1 ti 8
Kini iṣẹ-ṣiṣe idinku gbogbo ṣe aṣeyọri ni ikẹkọ pinpin?
Awotẹlẹ gbogbo ibeere8 ibeere
Awọn idahun ati awọn alaye han bi o ṣe n mu ibeere naa.
- Kini iṣẹ-ṣiṣe idinku gbogbo ṣe aṣeyọri ni ikẹkọ pinpin?
- O daapọ awọn iye kọja gbogbo awọn GPUs ati fun gbogbo GPU ni abajade apapọ
- O npa data laiṣe lati GPU kan
- O dinku iyara aago GPU lati fi agbara pamọ
- O firanṣẹ data lati gbogbo awọn GPU si disk ibi ipamọ kan
- Kini adape NCCL duro fun?
- Ohunkikan Iṣiro Iṣupọ Layer
- Network kaṣe Iṣakoso kannaa
- NVIDIA Collective Communications Library
- Nomba Convolution Compute Library
- Why can chunked ring communication be useful for a large tensor?
- It guarantees constant latency for any number of devices
- Chunks can be streamed across participating links instead of waiting for one monolithic transfer
- It makes topology irrelevant
- It prevents all network contention
- Iṣe apapọ wo ni o ṣajọ nkan data GPU kọọkan sinu ẹda kikun ti o waye nipasẹ gbogbo awọn GPU?
- Igbohunsafefe
- Din-tuka
- Idena
- Gbogbo-kó
- What does a supported network reduction offload such as SHARP do?
- Guarantee exactly half the traffic for every collective
- Remove the need for participating ranks
- Perform some reduction work in compatible network hardware
- Turn all-gather into a local memory copy
- Isopọmọra wo ni NCCL maa n lo fun ibaraẹnisọrọ LARIN awọn olupin (awọn apa)?
- InfiniBand tabi RoCE
- Okun USB
- Iho PCIe nikan
- Wi-Fi
- Three ranks contribute scalar values 2, 3 and 5 to a sum all-reduce. What value does each receive?
- Only its own original value
- 3 for the middle rank and nothing elsewhere
- The average 3.33 unless requested separately
- 10
- Which collective combines contributions but distributes reduced pieces instead of the entire reduced buffer to every rank?
- Gbogbo-kó
- Din-tuka
- Igbohunsafefe
- A standalone model checkpoint