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#2368 (HPC-10_mcastril_HPDAonlineDiagGPU) – NEMO

Opened 2 years ago

Closed 14 months ago

#2368 closed Task (fixed)

HPC-10_mcastril_HPDAonlineDiagGPU

Reported by: mcastril Owned by: mcastril
Priority: low Milestone: Unscheduled
Component: DIA Version: trunk
Severity: minor Keywords: diagnostics, GPU, offload, performance, HPC,
Cc:

Description

High performance data analytics solutions aiming at tackling the online diagnostics of the NEMO model will be explored as complementary components in the model diagnostics software eco-system. Online techniques leveraging fast (low latency and real-time) data analytics approaches (e.g. on fat nodes) will be evaluated in real cluster environments. In particular, an interface of NEMO to the High Performance Data Analitics (HPDA) framework will be designed and implemented for online diagnostics.

The rationale of this activity is to improve the NEMO computational performance by executing the computations for diagnostics on GPU.

Workplan action

Wikipage: wiki:2020WP/HPC-10_mcastril_HPDAonlineDiagGPU

Commit History (3)

ChangesetAuthorTimeChangeLog
14690jchanut2021-04-12T09:53:52+02:00

#2368, Add AGRIF zoom coincident with North and South boundaries in python script

14675ldebreu2021-04-06T14:44:31+02:00

AGFdomcfg: corrections for east-west cyclic grids, #2368

14674ldebreu2021-04-06T14:36:08+02:00

AGFdomcfg: corrections for east-west cyclic grids, #2368

Change History (6)

comment:1 Changed 15 months ago by ldebreu

In 14674:

Error: Failed to load processor CommitTicketReference
No macro or processor named 'CommitTicketReference' found

comment:2 Changed 15 months ago by ldebreu

In 14675:

Error: Failed to load processor CommitTicketReference
No macro or processor named 'CommitTicketReference' found

comment:3 Changed 15 months ago by jchanut

In 14690:

Error: Failed to load processor CommitTicketReference
No macro or processor named 'CommitTicketReference' found

comment:4 Changed 15 months ago by nemo

  • Milestone changed from IMMERSE 2020 to Unscheduled

comment:5 Changed 14 months ago by mcastril

  • wp_comment changed from As first step, the portability of NEMO diagnostic calculations to GPUs has been analyzed, exploring how to adapt these regions from the current MPI implementation to the CUDA paradigm. A toy model has been created to perform preliminary tests, that were done using the dia_hsb diagnostic. The code itself is executed 50x faster than in a single CPU but the data transfer to and from GPU is the main bottleneck. We are working on the asynchronous strategy in order to hide all communications among GPU/CPU. We also plan to increase the efficiency of the overall solution, by mitigating the impact of the offloaded data and extending our approach to the rest of the diagnostics. to As first step, the portability of NEMO diagnostic calculations to GPUs has been analyzed, exploring how to adapt these regions from the current MPI implementation to the CUDA paradigm. A toy model has been created to perform preliminary tests, that were done using the dia_hsb diagnostic. The code itself is executed 50x faster than in a single CPU but the data transfer to and from GPU is the main bottleneck.We are working on the asynchronous strategy in order to hide all communications among GPU/CPU. We also plan to increase the efficiency of the overall solution, by mitigating the impact of the offloaded data and extending our approach to the rest of the diagnostics.

To follow on #2662

comment:6 Changed 14 months ago by mcastril

  • Resolution set to fixed
  • Status changed from new to closed
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