only check system memory on macos

llm/llm.go

@@ -56,7 +56,6 @@ func New(workDir, model string, adapters []string, opts api.Options) (LLM, error
 				opts.NumGPU = 0
 			}
 		}
-	}
 
 		var requiredMemory int64
 		var f16Multiplier int64 = 2
@@ -77,18 +76,12 @@ func New(workDir, model string, adapters []string, opts api.Options) (LLM, error
 
 		systemMemory := int64(memory.TotalMemory())
 
-	videoMemory, err := CheckVRAM()
-	if err != nil{
-		videoMemory = 0
-	}
-
-	totalMemory := systemMemory + videoMemory
-
-	if ggml.FileType() == "F16" && requiredMemory*f16Multiplier > totalMemory {
+		if ggml.FileType() == "F16" && requiredMemory*f16Multiplier > systemMemory {
 			return nil, fmt.Errorf("F16 model requires at least %s of total memory", format.HumanBytes(requiredMemory))
-	} else if requiredMemory > totalMemory {
+		} else if requiredMemory > systemMemory {
 			return nil, fmt.Errorf("model requires at least %s of total memory", format.HumanBytes(requiredMemory))
 		}
+	}
 
 	switch ggml.Name() {
 	case "gguf":