Performance Pattern List

Work in progress!

Pattern	Shared-memory	Distributed-memory	File I/O	Accelerators
Bandwidth saturation	x	x	x	x
ALU saturation	x	x	x	x
Bad data placement	x	x	x	x
Load imbalance / High serial fraction	x	x	x	x

Ressource related:

• Core-related patterns:
  • ALU saturation
  • Instruction overhead
  • Excess data volume
  • Code composition with expensive instructions
  • Code composition with ineffective instructions
  • Pipelining issues
  • Control flow issues
  • Micro-architectural anomalies
  • Latency-bound data access

• Socket-related patterns:
  • Bandwidth saturation
  • Excess data volume
  • False sharing of cache lines

• Node-related patterns:
  • Bandwidth saturation
  • Bad ccNUMA page placement
  • False sharing of cache lines

• Cluster-related patterns:
  • Bandwidth saturation
  • Bad data placement

Parallelism related:

• Load imbalance
• Synchronization overhead