Welcome to DLB’s documentation!

• Introduction to DLB
  • LeWI: Lend When Idle
  • DROM: Dynamic Resource Ownership Manager
  • TALP: Tracking Application Live Performance
• Technical Requirements
  • Programming models
  • POSIX Shared Memory
  • Preload mechanism for MPI applications
  • Non-busy-waiting for MPI calls
  • Parallel regions in OpenMP
• How to install DLB
  • Build requirements
  • Installation steps
  • Other installation methods
  • DLB configure flags
• How to run with DLB
  • LeWI for improving Load Balance in Applications
  • DROM for making the application react to changes in the CPU affinity
  • TALP for monitoring the Programming Model efficiencies
• Public API
  • DLB Types
  • DLB Basic API
  • LeWI API
  • Dynamic Resource Manager Interface
  • TALP Interface
• Advanced Usage
  • DLB Return Errors
  • Callbacks
  • Asynchronous mode
  • OMPT
• FAQ: Frequently Asked Questions
  • Does my application need to meet any requirements to run with DLB?
  • Which should I use, LeWI or DROM for my application?
  • DLB fails registering a mask. What does it mean?
  • I’m running a hybrid MPI + OpenMP application but DLB doesn’t seem to have any impact
  • I’m running a well allocated hybrid MPI + OpenMP but DLB still doesn’t do anything.
  • How do I share CPUs between unrelated applications?
  • How do I prevent sharing CPUs between applications?
  • Can I see DLB in action in a Paraver trace?
  • Can I see DLB events in a Paraver trace?
  • What DLB library do I need to use if I want to trace the application but not DLB?
• Contents of the Package
  • Structure after installation
  • Binaries
  • Libraries
  • Examples
  • Scripts

Man pages

• dlb
• dlb_run
• dlb_shm
• dlb_taskset
• dlb.h
• dlb_drom.h
• dlb_errors.h
• dlb_sp.h
• dlb_talp.h
• dlb_types.h