Parallelization of Coupled Cluster Code with OpenMP

Parallelization of Coupled Cluster Code with OpenMP Anil Kumar Bohare Department of Computer Science, University of Pune, Pune-7, India

Multi-core architecture and its implications to software ,[object Object],[object Object],contd.

Multi-core architecture and its implications to software ,[object Object]

Parallelization of Coupled Cluster Code ,[object Object],[object Object],contd.

Parallelization of Coupled Cluster Code ,[object Object]

Agenda ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Introduction / Background ,[object Object],[object Object],[object Object],[object Object]

Problem ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],contd.

Parallelization: Description of the theory ,[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object]

Use of OpenMP ,[object Object],[object Object],[object Object]

System used ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

How to apply OpenMP? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Identify compute intensive loops ,[object Object],[object Object],[object Object],[object Object]

Scope of Data Parallelism ,[object Object],[object Object],[object Object],[object Object]

PARALLEL DO Directive ,[object Object],[object Object],contd.

PARALLEL DO Directive ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Reduction variables ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Mutual Exclusion Synchronization-Critical Section ,[object Object],[object Object],[object Object],[object Object],[object Object]

Atomic Directive ,[object Object],[object Object],[object Object]

Compilation & Execution ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],contd.

Compilation & Execution ,[object Object],[object Object]

General performance recommendations ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Advantages ,[object Object],[object Object],[object Object],[object Object]

Disadvantages ,[object Object],[object Object],[object Object]

Descriptive statistics Graph shows that as number of cores increasing wall clock it reducing at 35.66% of total time to increase performance

Further improvement ,[object Object],[object Object]

Conclusion ,[object Object],[object Object],[object Object],[object Object],[object Object]

References ,[object Object],[object Object],[object Object],[object Object],[object Object]

Parallelization of Coupled Cluster Code with OpenMP

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