Re: [Discuss-gnuradio] gr-fosphor : New RTSA-like visualization block for GNURadio using GPU acceleration

[Sylvain Munaut]

Hi Markus,


> 1) Can it be compiled without OpenCL?

No. All the data processing is done with OpenCL.


> 2) Do you know beignet? Appearantly they try to implement OpenCL support for
> Haswell.

Yes and this should in time allow to run fosphor.

But I don't think they're sufficiently advanced yet to do it. Last
time I checked they were missing some features required for fosphor
like :
 - Single channel float textures (sharing with OpenCL into a cl_mem)
 - Sharing of Vertex Buffer Objects (used for the 'live' spectrum line
and the 'max hold' line)

Possibly missing more, I was just taking a quick look at the code. I
don't have any hardware supporting it ...

Might be worth asking the Beignet dev if those are on their roadmap or
just implement them yourself, or hack fophor to disable some features
temporarely.


Cheers,

    Sylvain