mirror of
https://github.com/dogkeeper886/ollama37.git
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build: Make target improvements (#7499)
* llama: wire up builtin runner This adds a new entrypoint into the ollama CLI to run the cgo built runner. On Mac arm64, this will have GPU support, but on all other platforms it will be the lowest common denominator CPU build. After we fully transition to the new Go runners more tech-debt can be removed and we can stop building the "default" runner via make and rely on the builtin always. * build: Make target improvements Add a few new targets and help for building locally. This also adjusts the runner lookup to favor local builds, then runners relative to the executable, and finally payloads. * Support customized CPU flags for runners This implements a simplified custom CPU flags pattern for the runners. When built without overrides, the runner name contains the vector flag we check for (AVX) to ensure we don't try to run on unsupported systems and crash. If the user builds a customized set, we omit the naming scheme and don't check for compatibility. This avoids checking requirements at runtime, so that logic has been removed as well. This can be used to build GPU runners with no vector flags, or CPU/GPU runners with additional flags (e.g. AVX512) enabled. * Use relative paths If the user checks out the repo in a path that contains spaces, make gets really confused so use relative paths for everything in-repo to avoid breakage. * Remove payloads from main binary * install: clean up prior libraries This removes support for v0.3.6 and older versions (before the tar bundle) and ensures we clean up prior libraries before extracting the bundle(s). Without this change, runners and dependent libraries could leak when we update and lead to subtle runtime errors.
This commit is contained in:
Daniel Hiltgen
@@ -1,287 +1,117 @@
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package runners
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import (
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"compress/gzip"
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"errors"
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"fmt"
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"io"
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"io/fs"
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"log/slog"
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"os"
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"path/filepath"
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"runtime"
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"slices"
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"strconv"
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"strings"
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"sync"
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"syscall"
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"golang.org/x/sync/errgroup"
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"golang.org/x/sys/cpu"
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"github.com/ollama/ollama/discover"
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"github.com/ollama/ollama/envconfig"
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)
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const (
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binGlob = "*/*/*/*"
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)
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var (
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lock sync.Mutex
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runnersDir = ""
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once = sync.Once{}
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)
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// Return the location where runners are stored
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// If runners are payloads, this will either extract them
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// or refresh them if any have disappeared due to tmp cleaners
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func Refresh(payloadFS fs.FS) (string, error) {
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lock.Lock()
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defer lock.Unlock()
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var err error
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type CPUCapability uint32
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// Wire up extra logging on our first load
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if runnersDir == "" {
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defer func() {
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var runners []string
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for v := range GetAvailableServers(runnersDir) {
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runners = append(runners, v)
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}
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slog.Info("Dynamic LLM libraries", "runners", runners)
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slog.Debug("Override detection logic by setting OLLAMA_LLM_LIBRARY")
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}()
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}
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// Override at build time when building base GPU runners
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// var GPURunnerCPUCapability = CPUCapabilityAVX
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if hasPayloads(payloadFS) {
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if runnersDir == "" {
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runnersDir, err = extractRunners(payloadFS)
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} else {
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err = refreshRunners(payloadFS, runnersDir)
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}
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} else if runnersDir == "" {
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runnersDir, err = locateRunners()
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}
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const (
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CPUCapabilityNone CPUCapability = iota
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CPUCapabilityAVX
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CPUCapabilityAVX2
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// TODO AVX512
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)
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return runnersDir, err
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}
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func Cleanup(payloadFS fs.FS) {
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lock.Lock()
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defer lock.Unlock()
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if hasPayloads(payloadFS) && runnersDir != "" {
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// We want to fully clean up the tmpdir parent of the payloads dir
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tmpDir := filepath.Clean(filepath.Join(runnersDir, ".."))
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slog.Debug("cleaning up", "dir", tmpDir)
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err := os.RemoveAll(tmpDir)
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if err != nil {
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slog.Warn("failed to clean up", "dir", tmpDir, "err", err)
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}
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func (c CPUCapability) String() string {
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switch c {
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case CPUCapabilityAVX:
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return "avx"
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case CPUCapabilityAVX2:
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return "avx2"
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default:
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return "no vector extensions"
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}
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}
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func locateRunners() (string, error) {
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func GetCPUCapability() CPUCapability {
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if cpu.X86.HasAVX2 {
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return CPUCapabilityAVX2
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}
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if cpu.X86.HasAVX {
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return CPUCapabilityAVX
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}
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// else LCD
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return CPUCapabilityNone
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}
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// Return the location where runners were located
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// empty string indicates only builtin is present
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func Locate() string {
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once.Do(locateRunnersOnce)
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return runnersDir
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}
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// searches for runners in a prioritized set of locations
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// 1. local build, with executable at the top of the tree
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// 2. lib directory relative to executable
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func locateRunnersOnce() {
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exe, err := os.Executable()
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if err != nil {
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return "", err
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slog.Debug("runner locate", "error", err)
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}
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cwd, err := os.Getwd()
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if err != nil {
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return "", err
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paths := []string{
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filepath.Join(filepath.Dir(exe), "llama", "build", runtime.GOOS+"-"+runtime.GOARCH, "runners"),
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filepath.Join(filepath.Dir(exe), envconfig.LibRelativeToExe(), "lib", "ollama", "runners"),
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}
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var paths []string
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for _, root := range []string{filepath.Dir(exe), filepath.Join(filepath.Dir(exe), envconfig.LibRelativeToExe()), cwd} {
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paths = append(paths,
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root,
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filepath.Join(root, runtime.GOOS+"-"+runtime.GOARCH),
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filepath.Join(root, "dist", runtime.GOOS+"-"+runtime.GOARCH),
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)
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}
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// Try a few variations to improve developer experience when building from source in the local tree
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for _, path := range paths {
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candidate := filepath.Join(path, "lib", "ollama", "runners")
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if _, err := os.Stat(candidate); err == nil {
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return candidate, nil
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if _, err := os.Stat(path); err == nil {
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runnersDir = path
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slog.Debug("runners located", "dir", runnersDir)
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return
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}
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}
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return "", fmt.Errorf("unable to locate runners in any search path %v", paths)
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// Fall back to built-in
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slog.Debug("no dynamic runners detected, using only built-in")
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runnersDir = ""
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}
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// Return true if we're carying nested payloads for the runners
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func hasPayloads(payloadFS fs.FS) bool {
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files, err := fs.Glob(payloadFS, binGlob)
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if err != nil || len(files) == 0 || (len(files) == 1 && strings.Contains(files[0], "placeholder")) {
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return false
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}
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return true
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}
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func extractRunners(payloadFS fs.FS) (string, error) {
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cleanupTmpDirs()
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tmpDir, err := os.MkdirTemp(envconfig.TmpDir(), "ollama")
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if err != nil {
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return "", fmt.Errorf("failed to generate tmp dir: %w", err)
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}
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// Track our pid so we can clean up orphaned tmpdirs
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n := filepath.Join(tmpDir, "ollama.pid")
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if err := os.WriteFile(n, []byte(strconv.Itoa(os.Getpid())), 0o644); err != nil {
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slog.Warn("failed to write pid file", "file", n, "error", err)
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}
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// We create a distinct subdirectory for payloads within the tmpdir
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// This will typically look like /tmp/ollama3208993108/runners on linux
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rDir := filepath.Join(tmpDir, "runners")
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slog.Info("extracting embedded files", "dir", rDir)
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return rDir, refreshRunners(payloadFS, rDir)
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}
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func refreshRunners(payloadFS fs.FS, rDir string) error {
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// extract or refresh server libraries
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err := extractFiles(payloadFS, rDir, binGlob)
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if err != nil {
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return fmt.Errorf("extract binaries: %v", err)
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}
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return nil
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}
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// extract extracts the embedded files to the target directory
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func extractFiles(payloadFS fs.FS, targetDir string, glob string) error {
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files, err := fs.Glob(payloadFS, glob)
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if err != nil || len(files) == 0 {
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// Should not happen
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return fmt.Errorf("extractFiles called without payload present")
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}
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if err := os.MkdirAll(targetDir, 0o755); err != nil {
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return fmt.Errorf("extractFiles could not mkdir %s: %v", targetDir, err)
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}
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g := new(errgroup.Group)
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// $OS/$GOARCH/$RUNNER/$FILE
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for _, file := range files {
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filename := file
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runner := filepath.Base(filepath.Dir(filename))
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slog.Debug("extracting", "runner", runner, "payload", filename)
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g.Go(func() error {
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srcf, err := payloadFS.Open(filename)
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if err != nil {
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return err
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}
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defer srcf.Close()
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src := io.Reader(srcf)
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if strings.HasSuffix(filename, ".gz") {
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src, err = gzip.NewReader(src)
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if err != nil {
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return fmt.Errorf("decompress payload %s: %v", filename, err)
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}
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filename = strings.TrimSuffix(filename, ".gz")
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}
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runnerDir := filepath.Join(targetDir, runner)
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if err := os.MkdirAll(runnerDir, 0o755); err != nil {
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return fmt.Errorf("extractFiles could not mkdir %s: %v", runnerDir, err)
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}
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base := filepath.Base(filename)
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destFilename := filepath.Join(runnerDir, base)
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_, err = os.Stat(destFilename)
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switch {
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case errors.Is(err, os.ErrNotExist):
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destFile, err := os.OpenFile(destFilename, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0o755)
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if err != nil {
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return fmt.Errorf("write payload %s: %v", filename, err)
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}
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defer destFile.Close()
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if _, err := io.Copy(destFile, src); err != nil {
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return fmt.Errorf("copy payload %s: %v", filename, err)
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}
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case err != nil:
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return fmt.Errorf("stat payload %s: %v", filename, err)
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}
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return nil
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})
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}
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err = g.Wait()
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if err != nil {
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slog.Error("failed to extract files", "error", err)
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// If we fail to extract, the payload dir is most likely unusable, so cleanup whatever we extracted
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err := os.RemoveAll(targetDir)
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if err != nil {
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slog.Warn("failed to cleanup incomplete payload dir", "dir", targetDir, "error", err)
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}
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return err
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}
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return nil
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}
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// Best effort to clean up prior tmpdirs
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func cleanupTmpDirs() {
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tmpDir := envconfig.TmpDir()
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if tmpDir == "" {
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tmpDir = os.TempDir()
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}
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matches, err := filepath.Glob(filepath.Join(tmpDir, "ollama*", "ollama.pid"))
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if err != nil {
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return
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}
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for _, match := range matches {
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raw, err := os.ReadFile(match)
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if errors.Is(err, os.ErrNotExist) {
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slog.Debug("not a ollama runtime directory, skipping", "path", match)
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continue
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} else if err != nil {
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slog.Warn("could not read ollama.pid, skipping", "path", match, "error", err)
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continue
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}
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pid, err := strconv.Atoi(string(raw))
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if err != nil {
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slog.Warn("invalid pid, skipping", "path", match, "error", err)
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continue
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}
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p, err := os.FindProcess(pid)
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if err == nil && !errors.Is(p.Signal(syscall.Signal(0)), os.ErrProcessDone) {
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slog.Warn("process still running, skipping", "pid", pid, "path", match)
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continue
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}
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if err := os.Remove(match); err != nil {
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slog.Warn("could not cleanup stale pidfile", "path", match, "error", err)
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}
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runners := filepath.Join(filepath.Dir(match), "runners")
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if err := os.RemoveAll(runners); err != nil {
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slog.Warn("could not cleanup stale runners", "path", runners, "error", err)
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}
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if err := os.Remove(filepath.Dir(match)); err != nil {
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slog.Warn("could not cleanup stale tmpdir", "path", filepath.Dir(match), "error", err)
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}
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// Return the well-known name of the builtin runner for the given platform
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func BuiltinName() string {
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if runtime.GOOS == "darwin" && runtime.GOARCH == "arm64" {
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return "metal"
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}
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return "cpu"
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}
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// directory names are the name of the runner and may contain an optional
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// variant prefixed with '_' as the separator. For example, "cuda_v11" and
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// "cuda_v12" or "cpu" and "cpu_avx2". Any library without a variant is the
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// lowest common denominator
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func GetAvailableServers(payloadsDir string) map[string]string {
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if payloadsDir == "" {
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slog.Error("empty runner dir")
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return nil
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func GetAvailableServers() map[string]string {
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once.Do(locateRunnersOnce)
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servers := make(map[string]string)
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exe, err := os.Executable()
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if err == nil {
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servers[BuiltinName()] = exe
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}
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// glob payloadsDir for files that start with ollama_
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pattern := filepath.Join(payloadsDir, "*", "ollama_*")
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if runnersDir == "" {
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return servers
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}
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// glob runnersDir for files that start with ollama_
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pattern := filepath.Join(runnersDir, "*", "ollama_*")
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files, err := filepath.Glob(pattern)
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if err != nil {
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@@ -289,96 +119,88 @@ func GetAvailableServers(payloadsDir string) map[string]string {
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return nil
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}
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servers := make(map[string]string)
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for _, file := range files {
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slog.Debug("availableServers : found", "file", file)
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servers[filepath.Base(filepath.Dir(file))] = filepath.Dir(file)
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runnerName := filepath.Base(filepath.Dir(file))
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// Special case for our GPU runners - if compiled with standard AVX flag
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// detect incompatible system
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// Custom builds will omit this and its up to the user to ensure compatibility
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parsed := strings.Split(runnerName, "_")
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if len(parsed) == 3 && parsed[2] == "avx" && !cpu.X86.HasAVX {
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slog.Info("GPU runner incompatible with host system, CPU does not have AVX", "runner", runnerName)
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continue
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}
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servers[runnerName] = file
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}
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return servers
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}
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// serversForGpu returns a list of compatible servers give the provided GPU
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// info, ordered by performance. assumes Init() has been called
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// TODO - switch to metadata based mapping
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func ServersForGpu(info discover.GpuInfo) []string {
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// serversForGpu returns a list of compatible servers give the provided GPU library/variant
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func ServersForGpu(requested string) []string {
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// glob workDir for files that start with ollama_
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availableServers := GetAvailableServers(runnersDir)
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requested := info.Library
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if info.Variant != discover.CPUCapabilityNone.String() {
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requested += "_" + info.Variant
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availableServers := GetAvailableServers()
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// Short circuit if the only option is built-in
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if _, ok := availableServers[BuiltinName()]; ok && len(availableServers) == 1 {
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return []string{BuiltinName()}
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}
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bestCPUVariant := GetCPUCapability()
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requestedLib := strings.Split(requested, "_")[0]
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servers := []string{}
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// exact match first
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for a := range availableServers {
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if a == requested {
|
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short := a
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parsed := strings.Split(a, "_")
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if len(parsed) == 3 {
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// Strip off optional _avx for comparison
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short = parsed[0] + "_" + parsed[1]
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}
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if a == requested || short == requested {
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servers = []string{a}
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if a == "metal" {
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return servers
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}
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|
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break
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}
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}
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alt := []string{}
|
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|
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// Then for GPUs load alternates and sort the list for consistent load ordering
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if info.Library != "cpu" {
|
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// If no exact match, then try without variant
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if len(servers) == 0 {
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alt := []string{}
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for a := range availableServers {
|
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if info.Library == strings.Split(a, "_")[0] && a != requested {
|
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if requestedLib == strings.Split(a, "_")[0] && a != requested {
|
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alt = append(alt, a)
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}
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}
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slices.Sort(alt)
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servers = append(servers, alt...)
|
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}
|
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|
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if !(runtime.GOOS == "darwin" && runtime.GOARCH == "arm64") {
|
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// Load up the best CPU variant if not primary requested
|
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if info.Library != "cpu" {
|
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variant := discover.GetCPUCapability()
|
||||
// If no variant, then we fall back to default
|
||||
// If we have a variant, try that if we find an exact match
|
||||
// Attempting to run the wrong CPU instructions will panic the
|
||||
// process
|
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if variant != discover.CPUCapabilityNone {
|
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for cmp := range availableServers {
|
||||
if cmp == "cpu_"+variant.String() {
|
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servers = append(servers, cmp)
|
||||
break
|
||||
}
|
||||
}
|
||||
} else {
|
||||
servers = append(servers, "cpu")
|
||||
// Finally append the best CPU option if found, then builtin
|
||||
if bestCPUVariant != CPUCapabilityNone {
|
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for cmp := range availableServers {
|
||||
if cmp == "cpu_"+bestCPUVariant.String() {
|
||||
servers = append(servers, cmp)
|
||||
break
|
||||
}
|
||||
}
|
||||
|
||||
if len(servers) == 0 {
|
||||
servers = []string{"cpu"}
|
||||
}
|
||||
}
|
||||
|
||||
servers = append(servers, BuiltinName())
|
||||
return servers
|
||||
}
|
||||
|
||||
// Return the optimal server for this CPU architecture
|
||||
func ServerForCpu() string {
|
||||
if runtime.GOOS == "darwin" && runtime.GOARCH == "arm64" {
|
||||
return "metal"
|
||||
return BuiltinName()
|
||||
}
|
||||
variant := discover.GetCPUCapability()
|
||||
availableServers := GetAvailableServers(runnersDir)
|
||||
if variant != discover.CPUCapabilityNone {
|
||||
variant := GetCPUCapability()
|
||||
availableServers := GetAvailableServers()
|
||||
if variant != CPUCapabilityNone {
|
||||
for cmp := range availableServers {
|
||||
if cmp == "cpu_"+variant.String() {
|
||||
return cmp
|
||||
}
|
||||
}
|
||||
}
|
||||
return "cpu"
|
||||
return BuiltinName()
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user