24636dfa87
On windows, detect large multi-socket systems and reduce to the number of cores in one socket for best performance
101 lines
2 KiB
Go
101 lines
2 KiB
Go
//go:build darwin
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package gpu
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/*
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#cgo CFLAGS: -x objective-c
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#cgo LDFLAGS: -framework Foundation -framework CoreGraphics -framework Metal
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#include "gpu_info_darwin.h"
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*/
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import "C"
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import (
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"log/slog"
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"runtime"
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"syscall"
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"github.com/ollama/ollama/format"
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)
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const (
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metalMinimumMemory = 512 * format.MebiByte
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)
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func GetGPUInfo() GpuInfoList {
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mem, _ := GetCPUMem()
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if runtime.GOARCH == "amd64" {
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return []GpuInfo{
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{
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Library: "cpu",
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Variant: GetCPUCapability().String(),
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memInfo: mem,
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},
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}
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}
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info := GpuInfo{
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Library: "metal",
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ID: "0",
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}
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info.TotalMemory = uint64(C.getRecommendedMaxVRAM())
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// TODO is there a way to gather actual allocated video memory? (currentAllocatedSize doesn't work)
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info.FreeMemory = info.TotalMemory
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info.MinimumMemory = metalMinimumMemory
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return []GpuInfo{info}
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}
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func GetCPUInfo() GpuInfoList {
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mem, _ := GetCPUMem()
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return []GpuInfo{
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{
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Library: "cpu",
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Variant: GetCPUCapability().String(),
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memInfo: mem,
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},
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}
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}
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func GetCPUMem() (memInfo, error) {
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return memInfo{
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TotalMemory: uint64(C.getPhysicalMemory()),
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FreeMemory: uint64(C.getFreeMemory()),
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// FreeSwap omitted as Darwin uses dynamic paging
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}, nil
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}
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func (l GpuInfoList) GetVisibleDevicesEnv() (string, string) {
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// No-op on darwin
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return "", ""
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}
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func GetSystemInfo() SystemInfo {
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mem, _ := GetCPUMem()
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query := "hw.perflevel0.physicalcpu"
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perfCores, err := syscall.SysctlUint32(query)
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if err != nil {
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slog.Warn("failed to discover physical CPU details", "query", query, "error", err)
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}
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query = "hw.perflevel1.physicalcpu"
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efficiencyCores, _ := syscall.SysctlUint32(query) // On x86 xeon this wont return data
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// Determine thread count
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query = "hw.logicalcpu"
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logicalCores, _ := syscall.SysctlUint32(query)
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return SystemInfo{
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System: CPUInfo{
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GpuInfo: GpuInfo{
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memInfo: mem,
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},
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CPUs: []CPU{
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{
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CoreCount: int(perfCores + efficiencyCores),
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EfficiencyCoreCount: int(efficiencyCores),
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ThreadCount: int(logicalCores),
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},
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},
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},
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GPUs: GetGPUInfo(),
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}
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}
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