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Update README.md
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nlg550 authored Jun 29, 2021
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#### OmpSs-2:
- Simulation stages defined as OmpSs-2 tasks
- Tasks are synchronized through data dependencies
- Fully asynchronous execution
- Dynamic load balancing (overdecomposition + dynamic task scheduling)

For more details, please check our upcoming paper in EuroPar2021. The pre-print version is available in [ArXiv](https://arxiv.org/abs/2106.12485). The `ompss2` version in this repository corresponds to the `zpic-reduction-async` variant in the EuroPar2021 paper.

### NVIDIA GPUs (OpenACC)
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- Data management is handled by NVIDIA Unified Memory
- Support for multi-GPUs systems

### Features:
#### OmpSs-2:
- Simulation stages defined as OmpSs-2 tasks
- Tasks are synchronized through data dependencies
- Fully asynchronous execution
- Dynamic load balancing (overdecomposition + dynamic task scheduling)

#### OpenACC:
- Uses OpenMP for launching kernels in multiple devices, synchronizing their execution, etc.
- Prefetch routines to move data between devices to avoid page faults.
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