The optimistic version of speculative parallelization executes a loop in parallel and tests subsequently if any data dependences could have occurred. If this validation test fails, then the loop is re-executed in a safe manner, starting from a safe state, e.g., sequentially from a previous checkpoint.
The main component of our speculative parallelism model is a priority queue out of which free processors grab work. Each entry in the priority queue is a work.
Speculative parallelism is the parallelism that one finds when parallel tasks are spawned in the hope that they will later be of use.
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Speculative parallelism is the parallelism that one finds when parallel tasks are spawned in the hope that they will later be of use.
Questions? Speculative systems must extract nested parallelism in order to scale large, complex, real-world applications. Fractal: An execution ...
Abstract—Multicores are now ubiquitous, but programmers still write sequential code. Speculative parallelization is an enticing approach to parallelize code ...
In speculative parallelism, tasks are executed in parallel without prior confirmation of their necessity, which can result in wasted resources if predictions ...
Copy or Discard execution model for speculative parallelization on ...
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We propose the Copy or Discard (CorD) execution model in which the state of speculative parallel threads is maintained separately from the nonspeculative ...
By speculating that many data dependences are unlikely during runtime, consecutive iterations of a sequential loop can be executed speculatively in parallel.
Thread Level Speculation (TLS), also known as Speculative Multi-threading, or Speculative Parallelization, is a technique to speculatively execute a section ...