Blink communication is a library that helps computers communicate with each other effectively. It is specially designed for inter-GPU parameter exchange and optimizes link utilization to deliver near-optimal performance. This library is ideal for clusters that have different hardware generations or partial allocations from cluster schedulers as it dynamically generates optimal communication primitives for a given topology.
Topology Heterogeneity Handling
Blink can handle topology heterogeneity from hardware generations or partial allocations from cluster schedulers. It does this by using a probing mechanism at runtime to determine the set of links available for a given job. Based on this data, it builds a topology that has appropriate link capacities to ensure optimal communication rate.
Optimal Communication Rates
To achieve optimal communication rates, Blink uses a technique known as packing spanning trees. When compared to rings, spanning trees can utilize more links by packing them together. The authors use a multiplicative-weight update based approximation algorithm to quickly compute the maximal packing. This technique is also extended to further minimize the number of trees generated for better performance.
Effective across Multiple Machines
Blink is designed to work across multiple machines effectively utilizing all available network interfaces. This library provides collectives that extend across multiple machines, ensuring efficient and reliable communication between computers.
Blink communication library is an efficient way for computers to communicate with each other. It is specially designed for inter-GPU parameter exchange and delivers near-optimal link utilization. Blink is capable of handling topology heterogeneity from hardware generations or partial allocations from cluster schedulers. It uses a technique known as packing spanning trees to achieve optimal communication rates. Additionally, Blink's collectives extend across multiple machines, effectively utilizing all available network interfaces. Blink communication library is an excellent tool for clusters and provides reliable and high-performance communication between computers.
