DIGITAL CELL TWIN
Week 8
of 11
Human Cell Digital Twin
CUDA installed, design locked in — and the old model's graphs fixed
RECAP
What We Worked On This Week
02
01
Scaled to 800K voxels
The new spatial model now runs on the P100 at roughly 800,000 voxels.
02
Installed CUDA
The GPU compute stack is in place — diffusion now runs in parallel.
03
Fixed the graphs
Decreased the time interval on the old model, resolving the artifacts.
NEW MODEL · SPATIAL DIFFUSION
Scaled Up and Onto CUDA
03
800,000 voxels on the P100
A large jump in spatial resolution, on real GPU hardware.
CUDA installed
Every voxel updates simultaneously ,the point of the spatial approach.
Design changes made
Model restructured around the GPU, first approach.
Env variables & distance defined
Units, spacing and boundaries are now concrete.
SPATIAL RESOLUTION
800,000
voxels, live on the P100
CUDA installed
Design restructured
Env vars + distance defined
OLD MODEL · COMPARTMENTAL
Smaller Time Steps, Cleaner Graphs
04
THE ISSUE
The graphs showed artifacts — the output didn't track the chemistry smoothly.
THE FIX
We decreased the time interval, stepping time forward in smaller increments.
WHY IT WORKS
A smaller Δ means each state is computed from a closer previous state, so the curve resolves instead of overshooting.
t(x) = t(x–1) + Δ smaller Δ → smoother curve
BEFORE → AFTER
large Δ — artifacts
small Δ — clean
Same chemistry. The only difference is the size of the time step.
LOOKING AHEAD
What We Plan to Do
05
Push past 800K voxels
New model — raise resolution further now that CUDA is running.
01
Move P100 → H100
New model — shift onto the H100 for full-scale parallel compute.
02
Add visualization
New model — render the diffusion so the spread is visible.
03
Validate the old model
Old model — confirm the corrected graphs, continue expert review.
04
Week 8 of 11 — the spatial model is real and running. Next is scale and visibility.