# Performance Improvement with Non-Uniform Loads on SMT Processors
> Adnan

URL kanonis: https://discover.unhas.ac.id/publications/performance-improvement-with-non-uniform-loads-on-smt-processors
Jurnal / Konferensi: 5th International Conference on Computing Engineering and Design Icced 2019
Tahun terbit: 2019
DOI: https://doi.org/10.1109/ICCED46541.2019.9161091
Citations: 1

## Authors
- Adnan

## Abstract
Previously, the researcher conducted a study to improve processor performance focusing on uniform workloads. We suspect that the processor does not work optimally because there are several units that are inactive when working on a task. In this study, we want to show the performance of a computer if it is given a non-uniform load on the Intel Core i7-4790 and AMD Ryzen 5 1500X, so we can see the maximum performance of the processor because of the non-uniform workload. We use C and OpenMP to create a program code which is a matrix multiplication program m x n. Then, the researcher gives a different workload (integer and floating-point workload) into the program structure. We also provide additional workloads with rounds 5, 10, 15, 20 and 25 times. Finally, after each workload looped, we add para-loop to repeat both workloads 24 times simultaneously. The researcher executes the program 8 times per thread to get the best execution time. We found that in Intel Core i7 4790, the best speedup of the processor was 4.67 using 8 threads. Then, in AMD Ryzen 5 1500X, the best speedup of the processor was 5.21 using 8 threads. Just like speedup, the best IPC from the processor Intel Core i7 4790 is 7.00 when using 8 threads. In AMD Ryzen 5 1500X, the best IPC is 7.20 when using 8 threads. That means the speedup and IPC are directly proportional.

## Keywords
- Speedup
- Computer science
- Parallel computing
- Thread (computing)
- Workload
- Multi-core processor
- Performance improvement
- Matrix multiplication
- Operating system
- Physics
- Quantum
- Operations management
- Quantum mechanics
- Economics

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Sumber: Discover Unhas — RIMS Universitas Hasanuddin.
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