The clients and servers have to be provided a configuration file, one for each shard and a timestamp server (for OCC). For example a 3 shard configuration will have the following files:

shard0.config

f 1  
replica <server-address-1>:<port>
replica <server-address-2>:<port>
replica <server-address-3>:<port>

shard1.config

f 1
replica <server-address-4>:<port>
replica <server-address-5>:<port>
replica <server-address-6>:<port>

shard2.config

f 1
replica <server-address-7>:<port>
replica <server-address-8>:<port>
replica <server-address-9>:<port>

shard.tss.config

f 1
replica <server-address-10>:<port>
replica <server-address-11>:<port>
replica <server-address-12>:<port>

To start the replicas, run the following command with the server binary for any of the stores,

./server -c <shard-config-$n> -i <replica-number> -m <mode> -f <preload-keys>

For each shard, you need to run 2f+1 instances of server corresponding to the address:port pointed by replica-number. Make sure you run all replicas for all shards.

To run any of the clients in the benchmark directory,

./client -c <shard-config-prefix> -N <n_shards> -m <mode>