IB and IBM

Based on PoR, Inferix can assess the computing power of a Worker Node at a given time and uses a measurement unit called Inferix Bench (IB). When IB is multiplied by the node's working time, it results in Inferix Bench minutes, abbreviated as IBM. Thus, IBM is the metric used to measure the workload within the Inferix network.

To provide a quantitative perspective, 1 IB is defined as the average rendering capacity of a standard unit node with 2x RTX4090 GPUs, 32 GB of RAM, 1x Intel Core i9 CPU, SSD storage. This figure is updated daily using DAO mechanism, using benchmarks of a set of sample scenes on 10 nodes. The hardware specification of standard unit nodes and the sample scenes are also DAO-adjustable.

Assuming the average rendering time for one frame of a scene $G$ in the sample set is $T^{0}_{G}$, then it is not a fixed number, but is instead derived from the combined rendering capacity of the $10$ randomly selected standard unit nodes at the benchmarking time. The value of $T^{0}_{G}$ is influenced by GPU, CPU, storage read/write speeds and network speeds at the time of benchmarking, though the variation is negligible.

To determine the IB of any given node $n$, Inferix sends render requests for scene $G$ (randomly selected) to that node periodically. Assuming the average time it takes that node to render one frame in $G$ is $T_G$, the rendering power of $n$ is defined by:

$$\text{IB}\left(n\right) \triangleq \frac{T^{0}_{G}}{T_G}$$

Thus, the larger the $T_G$, the smaller the $\text{IB}_n$ value.