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llm: Avoid underflow in free memory logging 

If a GPU's free memory is less than the reserved amount, we might get
an underflow. Since it is an unsigned uint64, we print this as a large
number rather than the more correct 0. This only affects logging, the
actual layout code already handles this correctly.

Bug #12138
This commit is contained in:
Jesse Gross 2025-09-02 10:47:33 -07:00 committed by Jesse Gross
parent 0cc90a8186
commit 8149a3c86e
1 changed files with 5 additions and 1 deletions
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6
llm/server.go
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@ -678,8 +678,12 @@ func (s *ollamaServer) Load(ctx context.Context, gpus discover.GpuInfoList, requ
if !(len(gpus) == 1 && gpus[0].Library == "cpu") {
for _, gpu := range gpus {
available := gpu.FreeMemory - envconfig.GpuOverhead() - gpu.MinimumMemory
if gpu.FreeMemory < envconfig.GpuOverhead()+gpu.MinimumMemory {
available = 0
}
slog.Info("gpu memory", "id", gpu.ID,
"available", format.HumanBytes2(gpu.FreeMemory-envconfig.GpuOverhead()-gpu.MinimumMemory),
"available", format.HumanBytes2(available),
"free", format.HumanBytes2(gpu.FreeMemory),
"minimum", format.HumanBytes2(gpu.MinimumMemory),
"overhead", format.HumanBytes2(envconfig.GpuOverhead()))