Comparing FPGA RTL to HLS C/C++ using a Networking Example
White Paper Comparing FPGA RTL to HLS C/C++ using a Networking Example Overview Most FPGA programmers believe that high-level tools always emit larger bitstreams as
PCIe FPGA Card
250-U2
UltraScale+ on U.2 Form Factor
Fully programmable FPGA processor for NVMe acceleration
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Overview
BittWare’s 250-U2 is a Computational Storage Processor conforming to the U.2 form factor. It features an AMD Kintex UltraScale+ FPGA directly coupled to local DDR4 memory. This energy-efficient, flexible compute node is intended to be deployed within conventional U.2 NVMe storage arrays (approximately 1:8 ratio) allowing FPGA-accelerated instances of:
- Erasure Coding and Deduplication
- Compression, Encryption & Hashing
- String/Image Search and Database Sort/ Join/Filter
- Machine Learning Inference
The 250-U2 can be wholly programmed by customers developing in-house capabilities or delivered as a ready-to-run pre-configured solution featuring Eideticom’s NoLoad® IP. The 250-U2 is front-serviceable in a 1U chassis and can be mixed in with storage units in the same server, allowing users to mix-and-match storage and acceleration.
Key Features
Ideal for U.2 NVMe storage arrays
Up to 16 GBytes DDR4
KU15P Kintex UltraScale+ FPGA: 1.1 million LCs
Block Diagram, Data Sheet and Specifications
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Specifications
FPGA
- AMD Kintex UltraScale+
- KU15P in an FFVA1156 package
- Core speed grade - 2
- Contact BittWare for KU11P FPGA option
On-board DDR4 SDRAM
- One bank of DDR4 SDRAM x 72 bits
- 8GB bank (16GB version also available)
- Transfer Rate: 2400 MT/s
Host interface
- U.2 Connector
- Compliant to SFF-8639
Datacenter deployment
- On-board NVMe compliant SMBUs controller (Spec. 1.0a)
- Field flash update via software or SMBus
- SMBus FPGA flash control: anti-bricking, fallback, and multiboot
- SMBus access to unique board data and temperature sensor
Back panel features
- User LEDs accessible
- Reset switch to restore factory settings
Development features (behind back panel)
- JTAG connector for access to the FPGA, flash, and debug tools
- GPIO connector
- MicroSD connector
Power supply monitoring & reporting
- Voltage monitoring
- Temperature monitoring
- Fault condition reporting to FPGA
Cooling
- U.2 drive case optimized for cooling with passive heatsink
Electrical
- Hot swapping tolerant
- On-card power derived from U.2 supplies
- Power dissipation is application dependent
- Typical FPGA power consumption ~20W
- Card designed to deliver up to 25W power consumption
Environmental
- Operating temperature: 5°C to 35°C
- Cooling: air convection
Form factor
- U.2 compliant 2.5” Drive Form Factor
- Height: 15mm
Development Tools
FPGA development
- BIST - Built-In Self-Test for CentOS 7 provided with source code (pinout, gateware, PCIe driver and host test application)
Application development
- AMD Tools - Vivado Design Suite HLx Editions: HDL and C/C++ with HLS
Deliverables
- 250-U2 FPGA board
- Built-In Self-Test (BIST)
- Eideticom NoLoad pre-installed (optional)
- 1-year access to online Developer Site
- 1-year hardware warranty
- Contact BittWare for extended warranty and support options
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