Abstract / Description of output
HECToR is the UK's new high-end computing resource available for research funded by the UK Research Councils. This paper presents a case study of the popular ocean modelling code, NEMO [1], on the HECToR system. The main aims of the study were to investigate and where possible to improve the I/O performance and nested model performance of NEMO.
The paper begins with an introduction to the NEMO code along with some motivation for investigating le I/O and nested model performance. Section 3 describes the architecture of the HECToR system. Section 4 presents the baseline performance of the NEMO code and the results of a number of investigations which resulted in improved performance. In section 4.7 the effects of I/O are investigated and a method for improving the I/O performance is presented in section 5. Nested model performance is described in section 6.
The paper begins with an introduction to the NEMO code along with some motivation for investigating le I/O and nested model performance. Section 3 describes the architecture of the HECToR system. Section 4 presents the baseline performance of the NEMO code and the results of a number of investigations which resulted in improved performance. In section 4.7 the effects of I/O are investigated and a method for improving the I/O performance is presented in section 5. Nested model performance is described in section 6.
| Original language | English |
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| Number of pages | 11 |
| Publication status | Published - 2010 |
| Event | Cray User Groups (CUG) 2010 - Edinburgh, United Kingdom Duration: 24 May 2010 → 27 May 2010 |
Conference
| Conference | Cray User Groups (CUG) 2010 |
|---|---|
| Country/Territory | United Kingdom |
| City | Edinburgh |
| Period | 24/05/10 → 27/05/10 |