[llvm-dev] Introducing HardCloud @ FCCM 2018

[Jonas Hahnfeld via llvm-dev]

Hi Ciro,

some feedback after roughly scanning through your GitHub repository: 
It's a bit unfortunate that all of this work is based on IBM's clang-ykt 
fork and not on upstream Clang and the openmp repository. I know that 
trunk is lacking some features but that won't change if only few people 
contribute...

Regards,
Jonas

Am 2018-04-27 14:29, schrieb Ciro Ceissler via llvm-dev:
> Hi,
> 
> HardCloud (www.hardcloud.org [1]) is an extension to the OpenMP 4.X
> standard that seeks to ease the task of offloading IP-cores to FPGA
> accelerators in CPU-FPGA architectures. This is achieved by two new
> clauses [use] and [module] shown in the example below:
> 
> #pragma omp target device(HARP | HARPSIM | Catapult) map(to: X)
> map(from: Y)
> #pragma omp parallel for use(hrw) module(loopback) check
> for(int i = 0; i < n; i++) {
>     Y[i] = X[i];
> }
> 
> Clause use(hrw) allows the computation to be performed by a
> pre-synthesized hardware module (loopback) instead of by the C code
> following the annotation. A new optional [check] clause is under
> development to enable the automatic co-verification of the loopback
> output, i.e., Y, against the regular software execution.
> 
> A new OpenMP 4.X libomptarget plugin was added to the Clang/LLVM
> compiler that leverages on the Intel OPAE library to build a seamless
> programming interface.
> 
> HardCloud currently enables HARP and HARPSIM device plugins that are
> respectively associated with the Intel HARP2 architecture and its
> simulator. Design of the Microsoft Catapult plugin is underway.
> 
> HardCloud adds two new IP-blocks to the basic Intel HARP2 blocks. They
> allow the user's IP-core to perform streaming and indexed buffer
> accesses. This is done through a simple IP-core HDL interface.
> 
> We will demo HardCloud at FCCM 2018 from April 29 - May 1 in Boulder
> (CO), USA, and would be really happy to talk to you in case you are
> going to the conference.
> 
> At http://www.hardcloud.org you can find a docker distribution,
> tutorials, presentations and a Wiki that could be useful in case you
> want to give HardCloud a try.
> 
> Your feedback would be highly appreciated!!
> 
> Thanks.
> 
> --
> 
> Ciro Ceissler
> 
> 
> Links:
> ------
> [1] http://www.hardcloud.org/
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