DoubleClique

DoubleClique is a high‑performance, in‑memory, replicated key–value store that runs on Dolphin’s PCIe interconnect using the SISCI API.

Quick tour

.
├── client/         # client process (benchmarks + GET/PUT implementations)
├── server/         # replica process (hash table + request region handlers)
├── common/         # shared utils, buddy allocator, protocol headers
├── cmake/          # FindSISCI.cmake helper
└── CMakeLists.txt  # top‑level build recipe

REPLICA_COUNT is fixed to 3; change it in common/index_data_protocol.h.

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Building

Prerequisites

• C compiler with C17 support
• SISCI headers installed in /opt/DIS
• CMake ≥ 3.28

git clone https://github.com/kritjo/DoubleClique.git
cd DoubleClique
cmake -B build
cmake --build build -j$(nproc)

This produces two binaries:

Binary	Location	Purpose
server	build/server/	runs on each replica node
client	build/client/	benchmark / KV workload generator

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Running a test cluster

1. Start three replica nodes

# on node 0
build/server/server 0
# on node 1
build/server/server 1
# on node 2
build/server/server 2

2. Run the client (pass the Dolphin node IDs of the replicas in the order you prefer):

# on the client host
build/client/client 20 24 28

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Acknowledgements

• Paul Hsieh – for the SuperFastHash.
• Stanislav Paskalev – for the buddy_alloc implementation.