摘要:
A method, a system and a computer program product for effectively accelerating loop iterators using speculative execution of iterators. An Efficient Loop Iterator (ELI) utility detects initiation of a target program and initiates/spawns a speculative iterator thread at the start of the basic code block ahead of the code block that initiates a nested loop. The ELI utility assigns the iterator thread to a dedicated processor in a multi-processor system. The speculative thread runs/executes ahead of the execution of the nested loop and calculates indices in a corresponding multidimensional array. The iterator thread adds all the precomputed indices to a single queue. As a result, the ELI utility effectively enables a multidimensional loop to be replaced by a single dimensional loop. At the beginning of (or during) each iteration of the iterator, the ELI utility “dequeues” an entry from the queue to use the entry to access the array upon which the ELI utility iterates. The ELI utility performs concurrent iterations on the array by using the queue entries.
摘要:
Techniques for implementing a workflow are provided. The techniques include merging a workflow to create a virtual graph, wherein the workflow comprises two or more directed acyclic graphs (DAGs), mapping each of one or more nodes of the virtual graph to one or more physical nodes, and using a message passing scheme to implement a computation via the one or more physical nodes.
摘要:
Methods and arrangements for accommodating and synthesizing data for seeking broad-based solutions to complex problems. Logical models with respect to infrastructure in a first location are created. System-level models are created with respect to the logical models, and simulations are performed on the system-level models to verify expected behavior. Feedback is employed from the performed simulations to forecast changes in the system-level models.
摘要:
Techniques for implementing a workflow are provided. The techniques include merging a workflow to create a virtual graph, wherein the workflow comprises two or more directed acyclic graphs (DAGs), mapping each of one or more nodes of the virtual graph to one or more physical nodes, and using a message passing scheme to implement a computation via the one or more physical nodes.
摘要:
Techniques for implementing a workflow are provided. The techniques include merging a workflow to create a virtual graph, wherein the workflow comprises two or more directed acyclic graphs (DAGs), mapping each of one or more nodes of the virtual graph to one or more physical nodes, and using a message passing scheme to implement a computation via the one or more physical nodes.
摘要:
A method, a system and a computer program product for effectively accelerating loop iterators using speculative execution of iterators. An Efficient Loop Iterator (ELI) utility detects initiation of a target program and initiates/spawns a speculative iterator thread at the start of the basic code block ahead of the code block that initiates a nested loop. The ELI utility assigns the iterator thread to a dedicated processor in a multi-processor system. The speculative thread runs/executes ahead of the execution of the nested loop and calculates indices in a corresponding multidimensional array. The iterator thread adds all the precomputed indices to a single queue. As a result, the ELI utility effectively enables a multidimensional loop to be replaced by a single dimensional loop. At the beginning of (or during) each iteration of the iterator, the ELI utility “dequeues” an entry from the queue to use the entry to access the array upon which the ELI utility iterates. The ELI utility performs concurrent iterations on the array by using the queue entries.
摘要:
Embodiments of the invention related to a method and system for finding a distance between a plurality of time series, wherein each individual time series in the plurality of time series including a data, wherein the data is uncertain, and using such distance computed in business applications.
摘要:
Methods and arrangements for accommodating and synthesizing data for seeking broad-based solutions to complex problems. Logical models with respect to infrastructure in a first location are created. System-level models are created with respect to the logical models, and simulations are performed on the system-level models to verify expected behavior. Feedback is employed from the performed simulations to forecast changes in the system-level models.