Module memory_budget 

GPU Memory Budget — WebGPU/WASM limit enforcement.

WebGPU imposes strict hardware limits that vary by platform. This module tracks buffer allocations against these limits and provides pre-flight checks before GPU dispatch to prevent silent failures or OOM.

WebGPU Default Limits (W3C spec)

Limit	Default	Notes
maxStorageBufferBindingSize	128 MB	Per binding, per shader stage
maxBufferSize	256 MB	Total per buffer object
maxUniformBufferBindingSize	64 KB	Uniform blocks are small
maxStorageBuffersPerShaderStage	8	Max bindings per stage
maxComputeWorkgroupStorageSize	16 KB	Shared workgroup memory
maxComputeInvocationsPerWorkgroup	256	Threads per workgroup
maxComputeWorkgroupSizeX	256
maxComputeWorkgroupSizeY	256
maxComputeWorkgroupSizeZ	64
maxComputeWorkgroupsPerDimension	65535

Structs

GpuMemoryBudget

Tracks GPU buffer allocations and enforces limits.

GpuMemoryLimits

WebGPU hardware limits, initialized to W3C default minimums.

OrbitalGridMemoryEstimate

Memory estimation for orbital grid dispatch.

PairwiseMemoryEstimate

Memory estimation for pairwise computations (D4, EEQ Coulomb).

Enums

MemoryError

Errors from GPU memory budget checks.