Fix multi GPU on multiple amd architectures with rocblas_initialize() (#5)

* initialize rocblas

ggml-cuda.cu

@@ -10,6 +10,7 @@
 #include <hip/hip_runtime.h>
 #include <hipblas/hipblas.h>
 #include <hip/hip_fp16.h>
+#include "rocblas/rocblas.h"
 #define CUBLAS_COMPUTE_32F HIPBLAS_R_32F
 #define CUBLAS_COMPUTE_32F_FAST_16F HIPBLAS_R_32F
 #define CUBLAS_GEMM_DEFAULT HIPBLAS_GEMM_DEFAULT
@@ -2531,6 +2532,10 @@ void ggml_init_cublas() {
     static bool initialized = false;
 
     if (!initialized) {
+#ifdef GGML_USE_HIPBLAS
+    rocblas_initialize();
+    hipDeviceSynchronize();
+#endif
         CUDA_CHECK(cudaGetDeviceCount(&g_device_count));
         GGML_ASSERT(g_device_count <= GGML_CUDA_MAX_DEVICES);
         int64_t total_vram = 0;