dlb

Run DLB load balancing

$ dlb [command]

$ dlb status

$ dlb configure --mode [dynamic]

$ dlb --help

dlb [options] command [args]

dlb (Dynamic Load Balancing) is a library and runtime for load balancing in parallel applications. It enables dynamic redistribution of computational work across processes or threads to improve efficiency.
DLB addresses load imbalance in HPC applications where work distribution varies over time. By allowing processes to share computational resources dynamically, it improves parallel efficiency without requiring application redesign.
The library integrates with MPI applications and supports various programming models. The dlb command provides runtime control and monitoring of DLB-enabled applications.

COMMAND

DLB operation to perform.

Show current status.

Set configuration options.

Load balancing mode.

Verbose output.

Display help information.

Requires DLB-enabled applications. Effectiveness depends on application characteristics. Some overhead for load monitoring. Best suited for iterative applications with varying workloads.

DLB was developed at the Barcelona Supercomputing Center (BSC) for high-performance computing applications. It provides dynamic load balancing capabilities for parallel applications running on supercomputers and clusters.

mpirun(1), srun(1)