Exploiting long vectors with a CFD code: a co-design show case

Blancafort, Marc; Ferrer, Roger; Houzeaux, Guillaume; Garcia-Gasulla, Marta; Mantovani, Filippo

doi:10.1109/ipdps57955.2024.00047

2024 IEEE International Parallel and Distributed Processing Symposium (IPDPS) 2024

DOI: 10.1109/ipdps57955.2024.00047

|View full text |Cite

Exploiting long vectors with a CFD code: a co-design show case

Marc Blancafort,

Roger Ferrer,

Guillaume Houzeaux

et al.

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2024

Publication Types

Select...

Article1

Relationship

Self Cite0

Independent1

Authors

Journals

Cited by 1 publication

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Co-designing ab initio electronic structure methods on a RISC-V vector architecture

Grima Torres,

Vizcaíno,

Mantovani

et al. 2024

Open Res Europe

View full text Add to dashboard Cite

Ab initio electronic structure applications are among the most widely used in High-Performance Computing (HPC), and the eigenvalue problem is often their main computational bottleneck. This article presents our initial efforts in porting these codes to a RISC-V prototype platform leveraging a wide Vector Processing Unit (VPU). Our software tester is based on a mini-app extracted from the ELPA eigensolver library. The user-space Vehave and a RISC-V vector architecture implemented on an FPGA were tested. Metrics from both systems and different vectorisation strategies were extracted, ranging from the most simple and portable one (using autovectorisation and assisting this by fusing loops in the code) to the more complex one (using intrinsics). We observed a progressive reduction in the number of vectorial instructions, executed instructions and computing cycles with the different methodologies, which will lead to a substantial speed-up in the calculations. The obtained outcomes are crucial in advancing the porting of computational materials and molecular science codes to (post)-exascale architectures using RISC-V-based technologies fully developed within the EU. Our evaluation also provides valuable feedback for hardware designers, engineers and compiler developers, making this use case pivotal for co-design efforts.

show abstract

Co-designing ab initio electronic structure methods on a RISC-V vector architecture

Grima Torres,

Vizcaíno,

Mantovani

et al. 2024

Open Res Europe

View full text Add to dashboard Cite

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

hi@scite.ai

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Exploiting long vectors with a CFD code: a co-design show case

Cited by 1 publication

References 13 publications

Co-designing ab initio electronic structure methods on a RISC-V vector architecture

Co-designing ab initio electronic structure methods on a RISC-V vector architecture

Contact Info

Product

Resources

About