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1.3. Acronym List for Accelerator Functional Unit Developer’s Guide
Acronyms |
Expansion | Description |
---|---|---|
AFU |
Accelerator Functional Unit | Hardware Accelerator implemented in FPGA logic which offloads a computational operation for an application from the CPU to improve performance. |
AF |
Accelerator Function | Compiled Hardware Accelerator image implemented in FPGA logic that accelerates an application. An AFU and associated AFs may also be referred to as GBS (Green-Bits, Green BitStream) in the Acceleration Stack installation directory tree and in source code comments. |
API |
Application Programming Interface | A set of subroutine definitions, protocols, and tools for building software applications. |
ASE |
AFU Simulation Environment | Co-simulation environment that allows you to use the same host application and AF in a simulation environment. ASE is part of the Intel Acceleration Stack for FPGAs. |
CCI-P | Core Cache Interface | CCI-P is the standard interface AFUs use to communicate with the host. |
FIU |
FPGA Interface Unit | FIU is a platform interface layer that acts as a bridge between platform interfaces like PCIe* , UPI and AFU-side interfaces such as CCI-P. |
FIM |
FPGA Interface Manager | The FPGA hardware containing the FPGA Interface Unit (FIU) and external interfaces for memory, networking, etc. The FIM may also be referred to as BBS (Blue-Bits, Blue BitStream) in the Acceleration Stack installation directory tree and in source code comments. The Accelerator Function (AF) interfaces with the FIM at run time. |
NLB |
Native Loopback | The NLB performs reads and writes to the CCI-P link to test connectivity and throughput. |
OPAE |
Open Programmable Acceleration Engine | The OPAE is a software framework for managing and accessing AFs. |
PR |
Partial Reconfiguration | The ability to dynamically reconfigure a portion of an FPGA while the remaining FPGA design continues to function. |
TCP |
Transmission Control Protocol | TCP is a standard Internet protocol that defines how to establish and maintain a network conversation through which application programs can exchange data. |
PIM | Platform Interface Manager | An abstraction layer for managing top-level device ports and system-provided clock crossing. |
HSSI | High Speed Serial Interface | Reference to the multi-gigabit serial transceiver I/O in the FIM and the corresponding interface to the AFU. |