3 ms·

I wish the Ultra-scale devices did not cost an Arm and a Leg. Although, I only personally have a couple designs that could come close to using the amount logic

by anfilt 9y ago

I wish the Ultra-scale devices did not cost an Arm and a Leg. Although, I only personally have a couple designs that could come close to using the amount logic they provide. Although, 8GB of HBM could do some nice things. Also the UltraScale+ plus are one of thew few FPGAs capable of 1 GHz sequential logic for quite a few designs. So you could probably get a lot of performance for some signal processing or compute.

borramakot 9y ago
F1's on AWS are I think ultrascale+, though I don't know how fast Amazon actually lets you drive them.
- aseipp 9y ago
  There are a few different available clocks, each in different configurations (you always get a set of clocks, really), but you can get up to a 500Mhz clock out of them for specific clock lines from a specific configuration, with that particular configuration backed by a 250mhz "main" clock as well.
  - slededit 9y ago
    Do they let you use the clock management tiles or are they all tied up? With those you should be able to generate whatever clock you want.
    - aseipp 9y ago
      No, at least not directly with the way the HDK is set up out of the box; there are "Clock Recipes" you choose from at build time, and a recipe is just the pre-canned configuration. 3 different groups, each one with a chosen (single) recipe, each group giving you a few clocks of various frequencies. The clock recipe is examined as part of the "AFI Manifest" when Amazon creates FPGA images you can load, so I doubt you can go out of the way very much, here. https://github.com/aws/aws-fpga/blob/master/hdk/docs/clock_recipes.csv https://github.com/aws/aws-fpga/blob/master/hdk/docs/clock_r... https://github.com/aws/aws-fpga/blob/83c80efd30862d862ea8f99ff4045a22d57e3453/hdk/docs/AFI_Manifest.md#L41 https://github.com/aws/aws-fpga/blob/83c80efd30862d862ea8f99...
aseipp 9y ago
Depends on what you mean by arm-and-leg but, you can get an UltraScale+ Zynq (with carrier) for ~$800 USD from Avnet. It's low grade enough (XCZU3EG) you don't need a Vivado license: http://microzed.org/product/ultrazed-EG http://microzed.org/product/ultrazed-EG Xilinx has the lower/mid scale FPGA market fairly locked up in terms of licensing and available boards, I think, outside of a few niche Intel offerings (DE10 Nano is quite good). But you aren't going to get anything close to on-board HBM2 without spending north of $10k USD, or something.

by anfilt 9y ago

borramakot 9y ago

F1's on AWS are I think ultrascale+, though I don't know how fast Amazon actually lets you drive them.

aseipp 9y ago
There are a few different available clocks, each in different configurations (you always get a set of clocks, really), but you can get up to a 500Mhz clock out of them for specific clock lines from a specific configuration, with that particular configuration backed by a 250mhz "main" clock as well.
- slededit 9y ago
  Do they let you use the clock management tiles or are they all tied up? With those you should be able to generate whatever clock you want.
  - aseipp 9y ago
    No, at least not directly with the way the HDK is set up out of the box; there are "Clock Recipes" you choose from at build time, and a recipe is just the pre-canned configuration. 3 different groups, each one with a chosen (single) recipe, each group giving you a few clocks of various frequencies. The clock recipe is examined as part of the "AFI Manifest" when Amazon creates FPGA images you can load, so I doubt you can go out of the way very much, here. https://github.com/aws/aws-fpga/blob/master/hdk/docs/clock_recipes.csv https://github.com/aws/aws-fpga/blob/master/hdk/docs/clock_r... https://github.com/aws/aws-fpga/blob/83c80efd30862d862ea8f99ff4045a22d57e3453/hdk/docs/AFI_Manifest.md#L41 https://github.com/aws/aws-fpga/blob/83c80efd30862d862ea8f99...

aseipp 9y ago

Depends on what you mean by arm-and-leg but, you can get an UltraScale+ Zynq (with carrier) for ~$800 USD from Avnet. It's low grade enough (XCZU3EG) you don't need a Vivado license: http://microzed.org/product/ultrazed-EG http://microzed.org/product/ultrazed-EG Xilinx has the lower/mid scale FPGA market fairly locked up in terms of licensing and available boards, I think, outside of a few niche Intel offerings (DE10 Nano is quite good). But you aren't going to get anything close to on-board HBM2 without spending north of $10k USD, or something.