Kalray's MPPA® DPU Processor (Data Processing Unit)

A New Class of Processor, Specialized in Intelligent Data Processing, for Infrastructure, Compute and AI Acceleration

Coolidge™ is the third generation of Kalray’s MPPA® DPU processors. Coolidge™ is natively capable of managing multiple workloads in parallel with no bottlenecks to enable smarter, more efficient and energy-wise data-intensive applications.

Taking full advantage of Kalray’s patented MPPA® (Massively Parallel Processor Array) architecture, Coolidge™ is a scalable 80-core DPU processor designed for intelligent data processing. It offers a unique alternative to GPU, ASIC or FPGA, bringing unique value to multiple applications from Data Centers, to the Edge and in Embedded systems.

Kalray_MPPA_DPU_processor- Data-Processing-Unit

Key Benefits of MPPA® DPU (Data Processing Unit)

  1. High Performance Computing: Performance scalability within die, die-to-die, many dies.
  2. Heterogeneous Multi-processing: Parallel execution of dozens of heterogeneous critical tasks, including AI inference.
  3. Easy Programming: C/C++ / Open CL™ / Linux / POSIX / RTOS
  4. Real-time Data Processing: High speed I/O, RDMA architecture type
  5. Power Efficiency
  6. Security/Safety: Determinism, Freedom from interference, Secure boot

Data Processing Unit Use Cases


Kalray below arrow green

Develop Next Gen Storage and Networking Systems

Flexible integration in state-of-the-art PCIe Gen4, 100GbE appliances:

  • JBOF Target controller, I/O controller, SmartNIC, SmartSSD use cases
  • 2 configurations: stand-alone or x86 CPU offloading
  • Support virtualized, containerized or bare metal infrastructures
  • Dynamic resource allocation for Control, Data & Management Planes

Acceleration of high-performance protocols, services and QoS:

  • NVMe-oF, RoCE/RDMA, TCP/IP, NVMe, OVS/NFV protocols
  • Smart Load-Balancer, Priority Flow Control, Stateless L1-L4 parsing
  • RAID6: 154 Gbit/s Erasure Coding (Reed-Solomon) per cluster
  • Line-rate encryption/decryption/hash (IPSEC, TLS, XTS, MACsec)
  • AI capability for analytics and adaptive configuration


Kalray below arrow green

Build Accelerated Compute-Intensive Applications

Acceleration of complex workloads:

  • Patented core + co-processor boosting Machine Learning Inference
  • Computer Vision
  • Signal Processing (e.g. FFT), Cryptography, Mathematics

Build stand-alone intelligent embedded systems:

  • Multi-OS (Linux, RTOS) systems
  • Support ”Freedom from Interference” for mixed criticality

Build next gen Edge Computing Systems:

  • Process Data at the Intelligent Edge
  • Real-time analytics for automation, prediction, and control
  • Easy integration into existing systems


Kalray below arrow green

With MPPA® DPU Processors, the Possibilities Are Endless Allowing You to Innovate Without Borders

Powered by 80 cores, MPPA® DPU (Data Processing Unit) is a new generation of intelligent processor with unique capabilities in terms of programmability, performance, parallel execution of multiple criticial tasks, energy efficiency, safety and security. Our breakthrough MPPA® technology is paving the way to a new data processing era.

The kind of intelligent processor that give you the power to do more. More to propel fast developing sectors from 5G telecom networks, autonomous vehicles all the way to healthcare equipment, industry 4.0, drones and robots … and more!

DPU Technical Corner / Key Features


64-bit/32-bit architecture
From 600MHz to 1.2 GHz
6-issue VLIW
16KB instruction cache / 16KB data cache with MMU
IEEE 754-2008 Floating Point Unit (FPU)
Square root and reciprocal operations in floating single precision
64-bit integer multiplication (Asymmetric cryptography)
Up to 4 execution rings
Up to 256-bits per cycle Load/Store


Acceleration of INT8, INT16 or FP16 accuracy
Up to 128 MAC per cycle


16 Application Cores + 1 Management/Security Core
4 MB of Memory / L2 Cache – 600GB/s Low Latency / High Speed
Configurable cluster/chip cache coherency & deterministic modes


5 clusters (total of 80 Application Cores + 5 Management Cores)
Up to 1.15 TFLOPs (SP) / 384 GFLOPs (DP)
Up to 3 TFLOPs (16 bits) / 25 TOPs (8bits) for deep learning
56GB/s chip-to-chip communications (16 +12.5) x 2
16-lane PCIe GEN4 Endpoint (EP) or Root Complex (RC)
Bifurcation up to 8 downstream ports in RC mode
SR-IOV up to 8 Physical Functions / 248 Virtual Functions
Address translation and protection
Up to 2048 MSI-X & 64 MSI interrupts
Support for Hot Plug
Up to 512 DMAs for multi queues / kernel bypass drivers
Direct PCIe-to-clusters and PCIe-to-DDR transfers
Support for NVMe and VIRTIO emulation
64-bit DDR4/LPDDR4-3200 channels with sideband/inline ECC
Up to two ranks per DDR4 Channel
2 DDR channels (up to 32GB) with channel interleaving
8×1/8×10/8×25/2×40/4×50/2×100 GbE
RDMA over Converged Ethernet (RoCE v1 and v2)
Jumbo Frame Support (9.6KB)
Support for PTP/IEEE 1588v2
Priority Flow Control (PFC), IEEE 802.1Qbb
Checksum offload Header & Payload
Line rate packet classification/smart load balancing
Hash & Round-robin based dispatch policy
Secure Boot with authentication & encryption
True Random Number Generators (TRNG)
RSA, Diffie-Hellman, DSA, ECC, EC-DSA and EC-DH acceleration
AES-XTS for storage application
MD5/SHA-1, SHA-2, SHA-3
Kazumi/Snow 3G, ZUC
SSI Controller for serial NOR Flash with optional boot
SDCARD UHS-I / eMMC 4.51 memory controller
JTAG IEEE 1149.1
16-bit Parallel Trace Interface
Mix criticality support
Lockable critical configuration
Capability to bank memory and caches for non-interference & time-predictable execution
L1 Cache coherency enabling/disabling

Get Started Now!

Want to learn more about Kalray's Data Processing Unit (DPU)?

Related Content


Software development environment for developping applications using open coding standards on Kalray's processors.

Kalray K200 DPU-based Acceleration Card

Kalray's programmable, low-power PCIe card that can be used in acceleration or standalone mode.

Kalray K200-LP DPU-based Acceleration Card_hands

Fully programmable cards that bring the benefits of the MPPA® DPU (Data Processing Unit) technology to data centers for higher performance & more flexible solutions.

Kalray Press Release thumbnail
Press Release

Kalray is delighted to announce it has won the coveted Flash Memory Summit award for most innovative technology.

ServeTheHome product Review : Kalray DPU and accelerator cards

Check out ServeTheHome's detailed review in this article dedicated to Kalray's MPPA® DPU (Data processing Unit) processor, K200-LP accelerator cards and other DPU-based solutions.

Kalray Press Release thumbnail
Press Release

ReNESENS Project: Best of Breed in DPU Processors, Virtualization and Software-defined Technologies to Enable French and European Digital Independence

Kalray Press Release thumbnail
Press Release

Recognition for Kalray's unique technology and its DPU (Data Processing Unit), a new type of low-power, high-performance programmable processor dedicated to high-performance computing applications.

Kalray Press Release thumbnail
Press Release

Kalray announces that it has signed a major contract with a world leader in the field of high technology, listed on the NASDAQ, in accordance with the negotiations announced recently.