Final Report– PRACE Preparatory Access Type D

1. General information

1.1. Proposal ID

1.2. Type of project granted

Preparatory Access Type D – Code development, starting on Tier-1 system with support from PRACE experts

1.3. Period of access to the PRACE Tier-1 facilities

1.4. Name of the PRACE Tier-1 facility assigned

1.5. Proposal ID of related PA Type A proposal

1.6. Period of access to the PRACE Tier-0 facilities

1.7. Name of the PRACE Tier-0 facility assigned

2. Project information

2.1. Project name to which corresponds the developed and optimized code

2.2. Research field

(Please click twice in the box of your research field and select “checked”)

Astrophysics / Engineering and Energy
Earth Sciences and Environment / Mathematics and Computer Science
Medicine and Life Sciences / Finance and Social Science
Chemistry and Materials / Linguistics and Encryption
Fundamental Physics

2.3. Institutions and research team members

2.4. Summary of the project interest (Maximum 300 words)

Notice that should be mentioned the scientific cases and goals related to the project as well as technical goals (performance, parallel scalability, etc.). If it is suitable with the precedent comments, fill in the field with the same text used in the application form.

2.5. PRACE experts involved

Depending on their contribution, mention them as authors or acknowledge them.

3. Scalability testing

3.1. Summary of the obtained results from the scalability testing (Maximum 500 words)

Show the scaling behavior of your application. Whichprogress did you achieved? Does it fulfill yourexpectations? If not, what were the reasons?

3.2. Images or graphics showing results from the scalability testing (Minimum resolution of 300 dpi)

All tables and figures (including photographs, schemas, graphs and diagrams) should be numbered with Arabic numerals (1, 2,...n) and include a descriptive caption. Please attach the images to this form.

3.3. Data to deploy scalability curves

A) Some typical user test cases

Please include the data for each test case.

Number of cores / Wall clock time / Speed-up vs the first one / Number of Nodes / Number of process

B) Strong scaling curve

Please include the data in order to deploy the scalability curve when the number of processors varies for a fixed total problem size.

Number of cores / Wall clock time / Speed-up vs the first one / Number of Nodes / Number of process

C) Weal scaling curve

Please include the data in order to deploy the scalability curve when the number of processors varies for a fixed problem size per processor.

Number of cores / Wall clock time / Speed-up vs the first one / Number of Nodes / Number of process

3.4. Publications or reports regarding the scalability testing.

Please use the following format: Author(s). “Title”. Publication, volume, issue, page, month year

4. Development and optimization

4.1. General description of the work done in the project(unlimited number of words)

Please, mention the technical and algorithmic methods and programming techniques employed, the use of profiling tools when applicable and the use of numerical libraries when applicable.

4.2. Summary of the obtained results from the enabling process (Maximum 500 words)

Please describe the effort you spent. Which progress did you achieve? Please describe indetail which enabling work was performed (porting, work on algorithms, I/O…etc.). Which problems did you experience?

4.2.If applicable, which tools did you use to analyze your code? (e.g. Scalasca, Vampir…etc.) (Maximum 500 words)

4.3. What are the main actions that you did for optimization or improvement of your code on the PRACE machines? What feature was to be optimized? What was the bottleneck? What solution did you use (if any)?(Maximum 500 words)

4.4. Publications or reports regarding the development and optimization.

Please use the following format: Author(s). “Title”. Publication, volume, issue, page, month year

5. Main results

What are your conclusions? What do you think of the usability of the assigned PRACE system? Which is the relevance of the obtained results for the stated scientific goals? Please, explain the outlook on the possible future work.

6. Feedback and technical deployment

6.1. Feedback on the centers/PRACE mechanism(Maximum 500 words)

6.2. Explanation of how the computer time was used compared with the work plan presented in the proposal. Justification of discrepancies, especially if the computer time was not completely used.(Maximum 500 words)

6.3. Please, let us know if you plan to apply for PRACE Project Access in the future? If not, explain us why. (Maximum 500 words)

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