SoA Benchmarks

Benchmarks comparing run times with hardcoded SoA layouts revealed the following issue:

#include <vector>

struct SoA_Points { std::vector<float> x, y, z; };

struct S_ref { float &x, &y, &z; };

struct wrapper {
    SoA_Points soa_points;
    S_ref operator[]( int i ) {
        return { soa_points.x[i], soa_points.y[i], soa_points.z[i] };
    }
};

int main() {
    int N = 100;
    wrapper w {{ std::vector<float>(N), std::vector<float>(N), std::vector<float>(N) }};
    w[42].x = 3;  // Accesses all data members of soa_points, although only x is needed
    return 0;
}

I am trying to find a solution for this problem.

NGT Kubernetes Cluster

• We can now develop O2 code on the cluster (I am already developing like this).
• I am ready to share the corresponding yaml files and present the setup.
• Setup can be used with any IDE that allows remote development via ssh.
• Still waiting for non-Nvidia GPUs, but they are coming.