First version

Improved version

Decoding time improved vs basic vs old

• Intel(R) Core(TM) i7-8700 CPU @ 3.20GHz - 6 core / 12 threads 32 GB RAM
• NVIDIA GeForce RTX 2080 8 GB VRAM
• 5.3*10^7 clusters

• GPU Improved: mean 171.77 ms
• GPU basic: mean 235.32 ms
• Original: mean 608.89 ms

Problem

When running on EPN's node epn000 GPUs the program stalls:

Sometimes this error message:

[ERROR] HIP Error: 2 / out of memory (/home/gcimador/alice/sw/SOURCES/O2/memCpyMSNew/0/GPU/GPUTracking/Base/hip/GPUReconstructionHIP.hip:381)
[ERROR] Error creating HIP Stream

Which points to:

GPUFailedMsgI(hipStreamCreate(&mInternals->Streams[i]))

When run on EPN's node epn349 there is no problem

Next

• Test and tune on EPN
• Remove code duplication
• Maybe seek further optimisation?