Loop-Carried Dependency
A performance bottleneck phenomenon in high-performance computing where the computation of one loop iteration depends on values produced by a previous iteration, preventing the processor from exploiting instruction-level parallelism and creating a serial dependency chain that limits execution efficiency.
Timeline (last 90 days)
Loop-carried dependency refers to the situation in a loop where the computation of one iteration depends on values produced by the previous or earlier iterations.
For scenarios with loop-carried dependencies, the critical path can be broken by maintaining multiple independent accumulators or computation streams, thereby hiding instruction latency and restoring throughput.
All Facts (2)
Loop-carried dependency refers to the situation in a loop where the computation of one iteration depends on values produced by the previous or earlier iterations.
50%UnverifiedFor scenarios with loop-carried dependencies, the critical path can be broken by maintaining multiple independent accumulators or computation streams, thereby hiding instruction latency and restoring throughput.
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