Merge pull request #4330 from ollama/mxyng/cache-intermediate-layers
cache and reuse intermediate blobs
This commit is contained in:
commit
b4dce13309
4 changed files with 53 additions and 18 deletions
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@ -340,7 +340,24 @@ func CreateModel(ctx context.Context, name, modelFileDir, quantization string, m
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return err
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}
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} else if strings.HasPrefix(c.Args, "@") {
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blobpath, err := GetBlobsPath(strings.TrimPrefix(c.Args, "@"))
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digest := strings.TrimPrefix(c.Args, "@")
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if ib, ok := intermediateBlobs.Load(digest); ok {
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p, err := GetBlobsPath(ib.(string))
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if err != nil {
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return err
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}
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if _, err := os.Stat(p); errors.Is(err, os.ErrNotExist) {
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// pass
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} else if err != nil {
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return err
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} else {
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fn(api.ProgressResponse{Status: fmt.Sprintf("using cached layer %s", ib.(string))})
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digest = ib.(string)
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}
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}
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blobpath, err := GetBlobsPath(digest)
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if err != nil {
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return err
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}
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@ -351,14 +368,14 @@ func CreateModel(ctx context.Context, name, modelFileDir, quantization string, m
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}
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defer blob.Close()
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baseLayers, err = parseFromFile(ctx, blob, fn)
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baseLayers, err = parseFromFile(ctx, blob, digest, fn)
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if err != nil {
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return err
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}
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} else if file, err := os.Open(realpath(modelFileDir, c.Args)); err == nil {
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defer file.Close()
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baseLayers, err = parseFromFile(ctx, file, fn)
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baseLayers, err = parseFromFile(ctx, file, "", fn)
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if err != nil {
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return err
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}
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@ -398,10 +415,14 @@ func CreateModel(ctx context.Context, name, modelFileDir, quantization string, m
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return err
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}
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f16digest := baseLayer.Layer.Digest
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baseLayer.Layer, err = NewLayer(temp, baseLayer.Layer.MediaType)
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if err != nil {
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return err
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}
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intermediateBlobs.Store(f16digest, baseLayer.Layer.Digest)
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}
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}
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@ -80,7 +80,7 @@ func NewLayerFromLayer(digest, mediatype, from string) (*Layer, error) {
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}, nil
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}
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func (l *Layer) Open() (io.ReadCloser, error) {
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func (l *Layer) Open() (io.ReadSeekCloser, error) {
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blob, err := GetBlobsPath(l.Digest)
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if err != nil {
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return nil, err
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@ -10,6 +10,7 @@ import (
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"net/http"
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"os"
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"path/filepath"
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"sync"
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"github.com/ollama/ollama/api"
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"github.com/ollama/ollama/convert"
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@ -17,6 +18,8 @@ import (
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"github.com/ollama/ollama/types/model"
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)
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var intermediateBlobs sync.Map
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type layerWithGGML struct {
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*Layer
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*llm.GGML
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@ -76,7 +79,7 @@ func parseFromModel(ctx context.Context, name model.Name, fn func(api.ProgressRe
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return layers, nil
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}
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func parseFromZipFile(_ context.Context, file *os.File, fn func(api.ProgressResponse)) (layers []*layerWithGGML, err error) {
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func parseFromZipFile(_ context.Context, file *os.File, digest string, fn func(api.ProgressResponse)) (layers []*layerWithGGML, err error) {
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stat, err := file.Stat()
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if err != nil {
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return nil, err
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@ -169,12 +172,7 @@ func parseFromZipFile(_ context.Context, file *os.File, fn func(api.ProgressResp
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return nil, fmt.Errorf("aaa: %w", err)
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}
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blobpath, err := GetBlobsPath(layer.Digest)
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if err != nil {
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return nil, err
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}
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bin, err := os.Open(blobpath)
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bin, err := layer.Open()
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if err != nil {
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return nil, err
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}
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@ -185,16 +183,13 @@ func parseFromZipFile(_ context.Context, file *os.File, fn func(api.ProgressResp
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return nil, err
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}
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layer, err = NewLayerFromLayer(layer.Digest, layer.MediaType, "")
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if err != nil {
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return nil, err
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}
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layers = append(layers, &layerWithGGML{layer, ggml})
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intermediateBlobs.Store(digest, layer.Digest)
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return layers, nil
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}
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func parseFromFile(ctx context.Context, file *os.File, fn func(api.ProgressResponse)) (layers []*layerWithGGML, err error) {
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func parseFromFile(ctx context.Context, file *os.File, digest string, fn func(api.ProgressResponse)) (layers []*layerWithGGML, err error) {
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sr := io.NewSectionReader(file, 0, 512)
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contentType, err := detectContentType(sr)
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if err != nil {
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@ -205,7 +200,7 @@ func parseFromFile(ctx context.Context, file *os.File, fn func(api.ProgressRespo
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case "gguf", "ggla":
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// noop
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case "application/zip":
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return parseFromZipFile(ctx, file, fn)
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return parseFromZipFile(ctx, file, digest, fn)
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default:
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return nil, fmt.Errorf("unsupported content type: %s", contentType)
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}
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@ -841,6 +841,25 @@ func (s *Server) HeadBlobHandler(c *gin.Context) {
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}
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func (s *Server) CreateBlobHandler(c *gin.Context) {
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ib, ok := intermediateBlobs.Load(c.Param("digest"))
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if ok {
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p, err := GetBlobsPath(ib.(string))
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if err != nil {
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c.AbortWithStatusJSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
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return
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}
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if _, err := os.Stat(p); errors.Is(err, os.ErrNotExist) {
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intermediateBlobs.Delete(c.Param("digest"))
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} else if err != nil {
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c.AbortWithStatusJSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
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return
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} else {
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c.Status(http.StatusOK)
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return
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}
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}
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path, err := GetBlobsPath(c.Param("digest"))
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if err != nil {
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c.AbortWithStatusJSON(http.StatusBadRequest, gin.H{"error": err.Error()})
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