Merge branch 'patch_merge' into extract_outliers

12 files changed, 469 insertions, 78 deletions

diff --git a/CHANGELOG.md b/CHANGELOG.md
index fa20b15..285984e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -53,3 +53,17 @@ Bug fixes:
 
 Docs:
  - Added instructions how to solve "\_\_fatbinwrap_" errors.
+
+
+### 0.30.0
+
+#### 8-bit Inference Update
+
+Features:
+ - Added 8-bit matrix multiplication form cuBLAS,  and cuBLASLt as well as multiple GEMM kernels (GEMM, GEMMEx, GEMMLt)
+ - Added 8-bit Linear layers with 8-bit Params that perform memory efficient inference with an option for 8-bit mixed precision matrix decomposition for inference without performance degradation
+ - Added quantization methods for "fake" quantization as well as optimized kernels vector-wise quantization and equalization as well as optimized cuBLASLt transformations
+ - CPU only build now available (Thank you, @mryab)
+
+Deprecated:
+ - Pre-compiled release for CUDA 9.2, 10.0, 10.2 no longer available
diff --git a/Makefile b/Makefile
index b58e233..10f267a 100644
--- a/Makefile
+++ b/Makefile
@@ -16,7 +16,7 @@ FILES_CUDA := $(CSRC)/ops.cu $(CSRC)/kernels.cu
 FILES_CPP := $(CSRC)/common.cpp $(CSRC)/cpu_ops.cpp $(CSRC)/pythonInterface.c
 
 INCLUDE :=  -I $(CUDA_HOME)/include -I $(ROOT_DIR)/csrc -I $(CONDA_PREFIX)/include -I $(ROOT_DIR)/dependencies/cub -I $(ROOT_DIR)/include
-LIB := -L $(CUDA_HOME)/lib64 -lcudart -lcuda -lcublas -lcurand -lcusparse -L $(CONDA_PREFIX)/lib
+LIB := -L $(CUDA_HOME)/lib64 -lcudart -lcublas -lcublasLt -lcurand -lcusparse -L $(CONDA_PREFIX)/lib
 
 # NVIDIA NVCC compilation flags
 COMPUTE_CAPABILITY := -gencode arch=compute_35,code=sm_35 # Kepler 
@@ -27,7 +27,6 @@ COMPUTE_CAPABILITY += -gencode arch=compute_60,code=sm_60 # Pascal
 COMPUTE_CAPABILITY += -gencode arch=compute_61,code=sm_61 # Pascal
 COMPUTE_CAPABILITY += -gencode arch=compute_70,code=sm_70 # Volta
 COMPUTE_CAPABILITY += -gencode arch=compute_72,code=sm_72 # Volta 
-COMPUTE_CAPABILITY += -gencode arch=compute_72,code=sm_72 # Volta 
 
 # CUDA 9.2 supports CC 3.0, but CUDA >= 11.0 does not
 CC_CUDA92 := -gencode arch=compute_30,code=sm_30
@@ -43,31 +42,49 @@ CC_CUDA11x := -gencode arch=compute_75,code=sm_75
 CC_CUDA11x += -gencode arch=compute_80,code=sm_80
 CC_CUDA11x += -gencode arch=compute_86,code=sm_86
 
+CC_cublasLt110 := -gencode arch=compute_75,code=sm_75
+CC_cublasLt110 += -gencode arch=compute_80,code=sm_80
+
+CC_cublasLt111 := -gencode arch=compute_75,code=sm_75
+CC_cublasLt111 += -gencode arch=compute_80,code=sm_80
+CC_cublasLt111 += -gencode arch=compute_86,code=sm_86
+
+
 all: $(ROOT_DIR)/dependencies/cub $(BUILD_DIR) env
-	$(NVCC) $(COMPUTE_CAPABILITY) -Xcompiler '-fPIC' --use_fast_math -Xptxas=-v -dc $(FILES_CUDA) $(INCLUDE) $(LIB) --output-directory $(BUILD_DIR)
+	$(NVCC) $(COMPUTE_CAPABILITY) -Xcompiler '-fPIC' --use_fast_math -Xptxas=-v -dc $(FILES_CUDA) $(INCLUDE) $(LIB) --output-directory $(BUILD_DIR) -D NO_CUBLASLT
 	$(NVCC) $(COMPUTE_CAPABILITY) -Xcompiler '-fPIC' -dlink $(BUILD_DIR)/ops.o $(BUILD_DIR)/kernels.o -o $(BUILD_DIR)/link.o 
 	$(GPP) -std=c++14 -DBUILD_CUDA -shared -fPIC $(INCLUDE) $(BUILD_DIR)/ops.o $(BUILD_DIR)/kernels.o $(BUILD_DIR)/link.o $(FILES_CPP) -o ./bitsandbytes/libbitsandbytes.so $(LIB)
 
 cuda92: $(ROOT_DIR)/dependencies/cub $(BUILD_DIR) env
-	$(NVCC) $(COMPUTE_CAPABILITY) $(CC_CUDA92) -Xcompiler '-fPIC' --use_fast_math -Xptxas=-v -dc $(FILES_CUDA) $(INCLUDE) $(LIB) --output-directory $(BUILD_DIR)
+	$(NVCC) $(COMPUTE_CAPABILITY) $(CC_CUDA92) -Xcompiler '-fPIC' --use_fast_math -Xptxas=-v -dc $(FILES_CUDA) $(INCLUDE) $(LIB) --output-directory $(BUILD_DIR) -D NO_CUBLASLT
 	$(NVCC) $(COMPUTE_CAPABILITY) $(CC_CUDA92) -Xcompiler '-fPIC' -dlink $(BUILD_DIR)/ops.o $(BUILD_DIR)/kernels.o -o $(BUILD_DIR)/link.o 
 	$(GPP) -std=c++14 -DBUILD_CUDA -shared -fPIC $(INCLUDE) $(BUILD_DIR)/ops.o $(BUILD_DIR)/kernels.o $(BUILD_DIR)/link.o $(FILES_CPP) -o ./bitsandbytes/libbitsandbytes.so $(LIB)
 
-cuda10x: $(ROOT_DIR)/dependencies/cub $(BUILD_DIR) env
-	$(NVCC) $(COMPUTE_CAPABILITY) $(CC_CUDA10x) -Xcompiler '-fPIC' --use_fast_math -Xptxas=-v -dc $(FILES_CUDA) $(INCLUDE) $(LIB) --output-directory $(BUILD_DIR)
+cuda10x_nomatmul: $(ROOT_DIR)/dependencies/cub $(BUILD_DIR) env
+	$(NVCC) $(COMPUTE_CAPABILITY) $(CC_CUDA10x) -Xcompiler '-fPIC' --use_fast_math -Xptxas=-v -dc $(FILES_CUDA) $(INCLUDE) $(LIB) --output-directory $(BUILD_DIR) -D NO_CUBLASLT
 	$(NVCC) $(COMPUTE_CAPABILITY) $(CC_CUDA10x) -Xcompiler '-fPIC' -dlink $(BUILD_DIR)/ops.o $(BUILD_DIR)/kernels.o -o $(BUILD_DIR)/link.o 
 	$(GPP) -std=c++14 -DBUILD_CUDA -shared -fPIC $(INCLUDE) $(BUILD_DIR)/ops.o $(BUILD_DIR)/kernels.o $(BUILD_DIR)/link.o $(FILES_CPP) -o ./bitsandbytes/libbitsandbytes.so $(LIB)
 
-cuda110: $(BUILD_DIR) env
-	$(NVCC) $(COMPUTE_CAPABILITY) $(CC_CUDA110) -Xcompiler '-fPIC' --use_fast_math -Xptxas=-v -dc $(FILES_CUDA) $(INCLUDE) $(LIB) --output-directory $(BUILD_DIR)
+cuda110_nomatmul: $(BUILD_DIR) env
+	$(NVCC) $(COMPUTE_CAPABILITY) $(CC_CUDA110) -Xcompiler '-fPIC' --use_fast_math -Xptxas=-v -dc $(FILES_CUDA) $(INCLUDE) $(LIB) --output-directory $(BUILD_DIR) -D NO_CUBLASLT
 	$(NVCC) $(COMPUTE_CAPABILITY) $(CC_CUDA110) -Xcompiler '-fPIC' -dlink $(BUILD_DIR)/ops.o $(BUILD_DIR)/kernels.o -o $(BUILD_DIR)/link.o 
 	$(GPP) -std=c++14 -DBUILD_CUDA -shared -fPIC $(INCLUDE) $(BUILD_DIR)/ops.o $(BUILD_DIR)/kernels.o $(BUILD_DIR)/link.o $(FILES_CPP) -o ./bitsandbytes/libbitsandbytes.so $(LIB)
 
-cuda11x: $(BUILD_DIR) env
-	$(NVCC) $(COMPUTE_CAPABILITY) $(CC_CUDA11x) -Xcompiler '-fPIC' --use_fast_math -Xptxas=-v -dc $(FILES_CUDA) $(INCLUDE) $(LIB) --output-directory $(BUILD_DIR)
+cuda11x_nomatmul: $(BUILD_DIR) env
+	$(NVCC) $(COMPUTE_CAPABILITY) $(CC_CUDA11x) -Xcompiler '-fPIC' --use_fast_math -Xptxas=-v -dc $(FILES_CUDA) $(INCLUDE) $(LIB) --output-directory $(BUILD_DIR) -D NO_CUBLASLT
 	$(NVCC) $(COMPUTE_CAPABILITY) $(CC_CUDA11x) -Xcompiler '-fPIC' -dlink $(BUILD_DIR)/ops.o $(BUILD_DIR)/kernels.o -o $(BUILD_DIR)/link.o 
 	$(GPP) -std=c++14 -DBUILD_CUDA -shared -fPIC $(INCLUDE) $(BUILD_DIR)/ops.o $(BUILD_DIR)/kernels.o $(BUILD_DIR)/link.o $(FILES_CPP) -o ./bitsandbytes/libbitsandbytes.so $(LIB)
 
+cuda110: $(BUILD_DIR) env
+	$(NVCC) $(CC_cublasLt110) -Xcompiler '-fPIC' --use_fast_math -Xptxas=-v -dc $(FILES_CUDA) $(INCLUDE) $(LIB) --output-directory $(BUILD_DIR)
+	$(NVCC) $(CC_cublasLt110) -Xcompiler '-fPIC' -dlink $(BUILD_DIR)/ops.o $(BUILD_DIR)/kernels.o -o $(BUILD_DIR)/link.o 
+	$(GPP) -std=c++14 -DBUILD_CUDA -shared -fPIC $(INCLUDE) $(BUILD_DIR)/ops.o $(BUILD_DIR)/kernels.o $(BUILD_DIR)/link.o $(FILES_CPP) -o ./bitsandbytes/libbitsandbytes.so $(LIB)
+
+cuda11x: $(BUILD_DIR) env
+	$(NVCC) $(CC_cublasLt111) -Xcompiler '-fPIC' --use_fast_math -Xptxas=-v -dc $(FILES_CUDA) $(INCLUDE) $(LIB) --output-directory $(BUILD_DIR)
+	$(NVCC) $(CC_cublasLt111) -Xcompiler '-fPIC' -dlink $(BUILD_DIR)/ops.o $(BUILD_DIR)/kernels.o -o $(BUILD_DIR)/link.o 
+	$(GPP) -std=c++14 -DBUILD_CUDA -shared -fPIC $(INCLUDE) $(BUILD_DIR)/ops.o $(BUILD_DIR)/kernels.o $(BUILD_DIR)/link.o $(FILES_CPP) -o ./bitsandbytes/libbitsandbytes.so $(LIB)
+
 cpuonly: $(BUILD_DIR) env
 	$(GPP) -std=c++14 -shared -fPIC -I $(ROOT_DIR)/csrc -I $(ROOT_DIR)/include $(FILES_CPP) -o ./bitsandbytes/libbitsandbytes.so
 
diff --git a/bitsandbytes/functional.py b/bitsandbytes/functional.py
index a9233e2..ac85f88 100644
--- a/bitsandbytes/functional.py
+++ b/bitsandbytes/functional.py
@@ -897,7 +897,7 @@ def batched_igemm(A: Tensor, B: Tensor, out: Tensor=None, transposed_A=False, tr
                ct.c_long(strideA), ct.c_long(strideB), ct.c_long(strideC), ct.c_uint32(num_batch))
     return out
 
-def igemmlt(A, B, SA, SB, out=None, Sout=None, row_scale=None, dtype=torch.int32):
+def igemmlt(A, B, SA, SB, out=None, Sout=None, dtype=torch.int32):
     shapeA = SA[0]
     shapeB = SB[0]
     dimsA = len(shapeA)
@@ -917,7 +917,6 @@ def igemmlt(A, B, SA, SB, out=None, Sout=None, row_scale=None, dtype=torch.int32
     elif dimsA == 3 and out is None:
         out, Sout = get_transform_buffer((shapeA[0], shapeA[1], shapeB[0]), dtype, A.device, 'col32', 'row')
 
-    if row_scale is not None: assert row_scale.numel() == out.shape[0]
     assert dimsB != 3, 'len(B.shape)==3 not supported'
     assert A.device.type == 'cuda'
     assert B.device.type == 'cuda'
@@ -936,7 +935,6 @@ def igemmlt(A, B, SA, SB, out=None, Sout=None, row_scale=None, dtype=torch.int32
     ptrA = get_ptr(A)
     ptrB = get_ptr(B)
     ptrC = get_ptr(out)
-    ptrRowScale = get_ptr(row_scale)
 
     k = shapeA[-1]
     lda = ct.c_int32(m*32)
@@ -955,20 +953,17 @@ def igemmlt(A, B, SA, SB, out=None, Sout=None, row_scale=None, dtype=torch.int32
     k = ct.c_int32(k)
 
     has_error = 0
+    ptrRowScale = get_ptr(None)
     if formatB == 'col_turing':
         if dtype == torch.int32:
             has_error = lib.cigemmlt_turing_32(ptr, m, n, k, ptrA, ptrB, ptrC, ptrRowScale, lda, ldb, ldc)
-        elif row_scale is None:
-            has_error = lib.cigemmlt_turing_8(ptr, m, n, k, ptrA, ptrB, ptrC, ptrRowScale, lda, ldb, ldc)
         else:
-            has_error = lib.cigemmlt_turing_8_rowscale(ptr, m, n, k, ptrA, ptrB, ptrC, ptrRowScale, lda, ldb, ldc)
+            has_error = lib.cigemmlt_turing_8(ptr, m, n, k, ptrA, ptrB, ptrC, ptrRowScale, lda, ldb, ldc)
     elif formatB == 'col_ampere':
         if dtype == torch.int32:
             has_error = lib.cigemmlt_ampere_32(ptr, m, n, k, ptrA, ptrB, ptrC, ptrRowScale, lda, ldb, ldc)
-        elif row_scale is None:
-            has_error = lib.cigemmlt_ampere_8(ptr, m, n, k, ptrA, ptrB, ptrC, ptrRowScale, lda, ldb, ldc)
         else:
-            has_error = lib.cigemmlt_ampere_8_rowscale(ptr, m, n, k, ptrA, ptrB, ptrC, ptrRowScale, lda, ldb, ldc)
+            has_error = lib.cigemmlt_ampere_8(ptr, m, n, k, ptrA, ptrB, ptrC, ptrRowScale, lda, ldb, ldc)
 
     if has_error == 1:
         raise Exception('cublasLt ran into an error!')
diff --git a/csrc/kernels.cu b/csrc/kernels.cu
index 79ad5de..d4eb56c 100644
--- a/csrc/kernels.cu
+++ b/csrc/kernels.cu
@@ -1768,7 +1768,6 @@ template<typename T, int THREADS, int ITEMS_PER_THREAD, int TILE_ROWS, int TILE_
 
   __shared__ float smem_row_absmax_values[ITEMS_PER_THREAD*THREADS];
   __shared__ int smem_row_nnz_values[TILE_ROWS];
-  //__shared__ float smem_col_absmax_values[ITEMS_PER_THREAD*THREADS];
 
   half local_data[ITEMS_PER_THREAD];
   float local_data_fp32[ITEMS_PER_THREAD];
@@ -1828,13 +1827,14 @@ template<typename T, int THREADS, int ITEMS_PER_THREAD, int TILE_ROWS, int TILE_
       local_col_absmax_values[j] = fmaxf(local_col_absmax_values[j], __half2float(local_data[j]));
 
     // 3. compute row max (per block); store in smem to accumulate full global mem transation
-    __syncthreads();
 
     // this is slow as it uses extra registers, but we need this to be compatible with Kepler and Maxwell (no fp16 units)
     #pragma unroll ITEMS_PER_THREAD
     for(int j = 0; j < ITEMS_PER_THREAD; j++)
       local_data_fp32[j] = local_data[j];
 
+    __syncthreads();
+
     row_absmax = (float)BlockRowReduce(temp_storage.rowreduce).Reduce(local_data_fp32, cub::Max());
     if(SPARSE_DECOMP)
     {
@@ -2166,7 +2166,6 @@ template <int THREADS, int ITEMS_PER_THREAD, int TILE_ROWS, int TILE_COLS, int T
   __shared__ char smem_data[32*33*ITEMS_PER_THREAD];
   char local_data[ITEMS_PER_THREAD];
   typedef cub::BlockExchange<char, THREADS, ITEMS_PER_THREAD> BlockExchange;
-  __shared__ typename BlockExchange::TempStorage temp_storage;
 
   // we load row after row from the base_position
   // Load data row by row
@@ -2446,7 +2445,7 @@ template <int THREADS, int ITEMS_PER_THREAD, int TILE_ROWS, int TILE_COLS, int T
 #define MAX_SPARSE_COUNT 32
 #define SMEM_SIZE 8*256
 template <typename T, int SPMM_ITEMS, int BITS> 
-__global__ void kspmm_coo_very_sparse_naive(int *max_count, int *max_idx, int *offset_rowidx, int *rowidx, int *colidx, half *values, T *B, half *out, float *dequant_stats, int nnz, int rowsA, int rowsB, int colsB)
+__global__ void kspmm_coo_very_sparse_naive(int *max_count, int *max_idx, int *offset_rowidx, int *rowidx, int *colidx, half *values, T *B, half *out, float * __restrict__ const dequant_stats, int nnz, int rowsA, int rowsB, int colsB)
 {
 
   // 0. load balancing: We process rows with most columns first (count_vec)and we process one row per block
@@ -2500,7 +2499,7 @@ __global__ void kspmm_coo_very_sparse_naive(int *max_count, int *max_idx, int *o
     {
       for(int i = threadIdx.x; i < SMEM_SIZE; i+=blockDim.x)
         if((idx_col_B+i-local_idx_col_B_offset) < colsB)
-          smem_dequant_stats[i] = __ldg(&dequant_stats[idx_col_B+i-local_idx_col_B_offset]);
+          smem_dequant_stats[i] = dequant_stats[idx_col_B+i-local_idx_col_B_offset];
 
       __syncthreads();
     }
diff --git a/csrc/kernels.cuh b/csrc/kernels.cuh
index eda5ba0..2447494 100644
--- a/csrc/kernels.cuh
+++ b/csrc/kernels.cuh
@@ -107,7 +107,7 @@ template<typename T, int BLOCK_SIZE, int NUM_VALS> __global__ void kPercentileCl
 __global__ void kHistogramScatterAdd2D(float* histogram, int *index1, int *index2, float *src, const int maxidx1, const int n);
 
 
-template <typename T, int SPMM_ITEMS, int BITS> __global__ void kspmm_coo_very_sparse_naive(int *max_count, int *max_idx, int *offset_rowidx, int *rowidx, int *colidx, half *values, T *B, half *out,  float *dequant_stats, int nnz, int rowsA, int rowsB, int colsB);
+template <typename T, int SPMM_ITEMS, int BITS> __global__ void kspmm_coo_very_sparse_naive(int *max_count, int *max_idx, int *offset_rowidx, int *rowidx, int *colidx, half *values, T *B, half *out,  float * __restrict__ const dequant_stats, int nnz, int rowsA, int rowsB, int colsB);
 
 template <int ITEMS_PER_THREAD, int SUBTILE_ROWS, int THREADS>__global__ void kdequant_mm_int32_fp16(
   int *__restrict__ const A, float *__restrict__ const rowStats, float *__restrict__ const colStats,
diff --git a/csrc/ops.cu b/csrc/ops.cu
index e6227ae..952894c 100644
--- a/csrc/ops.cu
+++ b/csrc/ops.cu
@@ -247,6 +247,8 @@ int roundoff(int v, int d) {
 }
 
 
+#ifdef NO_CUBLASLT
+#else
 template<int ORDER> cublasLtOrder_t get_order()
 {
 	switch(ORDER)
@@ -266,7 +268,11 @@ template<int ORDER> cublasLtOrder_t get_order()
     case COL_AMPERE:
       return CUBLASLT_ORDER_COL32_2R_4R4;
       break;
+		default:
+			break;
   }
+
+	return CUBLASLT_ORDER_ROW;
 }
 
 template cublasLtOrder_t get_order<ROW>();
@@ -274,6 +280,7 @@ template cublasLtOrder_t get_order<COL>();
 template cublasLtOrder_t get_order<COL32>();
 template cublasLtOrder_t get_order<COL_TURING>();
 template cublasLtOrder_t get_order<COL_AMPERE>();
+#endif
 
 
 template<int ORDER> int get_leading_dim(int dim1, int dim2)
@@ -297,6 +304,9 @@ template<int ORDER> int get_leading_dim(int dim1, int dim2)
       // 32*32 tiles
       return 32*roundoff(dim1, 32);
       break;
+		default:
+			return 0;
+			break;
   }
 }
 
@@ -306,7 +316,8 @@ template int get_leading_dim<COL32>(int dim1, int dim2);
 
 template <typename T, int SRC, int TARGET, bool transpose, int DTYPE> void transform(cublasLtHandle_t ltHandle, T *A, T *out, int dim1, int dim2)
 {
-
+#ifdef NO_CUBLASLT
+#else
   cublasLtOrder_t orderA = get_order<SRC>();
   cublasLtOrder_t orderOut = get_order<TARGET>();
   int ldA = get_leading_dim<SRC>(dim1, dim2);
@@ -345,6 +356,7 @@ template <typename T, int SRC, int TARGET, bool transpose, int DTYPE> void trans
   if (A_desc) checkCublasStatus(cublasLtMatrixLayoutDestroy(A_desc));
   if (out_desc) checkCublasStatus(cublasLtMatrixLayoutDestroy(out_desc));
   if (A2Out_desc) checkCublasStatus(cublasLtMatrixTransformDescDestroy(A2Out_desc));
+#endif
 }
 
 template void transform<int8_t, ROW, COL, false, 8>(cublasLtHandle_t ltHandle, int8_t *A, int8_t *out, int dim1, int dim2);
@@ -358,6 +370,9 @@ template void transform<int32_t, COL32, ROW, false, 32>(cublasLtHandle_t ltHandl
 
 template <int FORMATB, int DTYPE_OUT, int SCALE_ROWS> int igemmlt(cublasLtHandle_t ltHandle, int m, int n, int k, const int8_t *A, const int8_t *B, void *C, float *row_scale, int lda, int ldb, int ldc) 
 {
+#ifdef NO_CUBLASLT
+	return 0;
+#else
     int has_error = 0;
     cublasLtMatmulDesc_t matmulDesc = NULL;
     cublasLtMatrixLayout_t Adesc = NULL, Bdesc = NULL, Cdesc = NULL;
@@ -412,6 +427,7 @@ template <int FORMATB, int DTYPE_OUT, int SCALE_ROWS> int igemmlt(cublasLtHandle
       printf("error detected");
 
     return has_error;
+#endif
 }
 
 int fill_up_to_nearest_multiple(int value, int multiple)
@@ -523,6 +539,9 @@ template <int FORMAT, int TRANSPOSE> void transformRowToFormat(char * A, char *o
 void spmm_coo(cusparseHandle_t handle, int *A_rowidx, int *A_colidx, half *A_vals, int A_nnz, int A_rows, int A_cols, int B_cols, int ldb, half *B, int ldc, half* C, bool transposed_B)
 {
 
+#ifdef NO_CUBLASLT
+#else
+
     cusparseSpMatDescr_t descA;
     cusparseDnMatDescr_t descB, descC;
 
@@ -569,6 +588,7 @@ void spmm_coo(cusparseHandle_t handle, int *A_rowidx, int *A_colidx, half *A_val
     CHECK_CUSPARSE( cusparseDestroyDnMat(descB) );
     CHECK_CUSPARSE( cusparseDestroyDnMat(descC) );
     CUDA_CHECK_RETURN( cudaFree(dBuffer) );
+#endif
 }
 
 template <typename T, int BITS> void spmm_coo_very_sparse_naive(int *max_count, int *max_idx, int *offset_rowidx, int *rowidx, int *colidx, half *values, T *B, half *out, float *dequant_stats, int nnz_rows, int nnz, int rowsA, int rowsB, int colsB)
diff --git a/csrc/pythonInterface.c b/csrc/pythonInterface.c
index 2ecbaae..7356c11 100644
--- a/csrc/pythonInterface.c
+++ b/csrc/pythonInterface.c
@@ -82,7 +82,6 @@ void quantizeBlockwise_stochastic_fp32(float * code, float *A, float *absmax, un
 
 void dequantizeBlockwise_fp16(float *code, unsigned char *A, float *absmax, half *out, int blocksize, const int n){ dequantizeBlockwise<half>(code, A, absmax, out, blocksize, n); } \
 void dequantizeBlockwise_fp32(float *code, unsigned char *A, float *absmax, float *out, int blocksize, const int n){ dequantizeBlockwise<float>(code, A, absmax, out, blocksize, n); }
-#endif
 
 #define MAKE_FUNC_TRANSFORM(fbits, fsrc, ftrgt, ftranspose, dtype, src, target, transpose, bits) \
 void transform_##fbits##_##fsrc##_to_##ftrgt##_##ftranspose(cublasLtHandle_t ltHandle, dtype *A, dtype *out, int dim1, int dim2) \
@@ -132,10 +131,11 @@ void spmm_coo_very_sparse_naive_fp16(int *max_count, int *max_idx, int *offset_r
 
 void spmm_coo_very_sparse_naive_int8(int *max_count, int *max_idx, int *offset_rowidx, int *rowidx, int *colidx, half *values, signed char *B, half *out, float *dequant_stats, int nnz_rows, int nnz, int rowsA, int rowsB, int colsB)
 { spmm_coo_very_sparse_naive<signed char, 8>(max_count, max_idx, offset_rowidx, rowidx, colidx, values, B, out, dequant_stats, nnz_rows, nnz, rowsA, rowsB, colsB); }
+#endif
 
 extern "C"
 {
-    #if BUILD_CUDA
+#if BUILD_CUDA
 	void cestimate_quantiles_fp32(float *A, float *code, float offset, int n){ estimateQuantiles_fp32(A, code, offset, n); }
 	void cestimate_quantiles_fp16(half *A, float *code, float offset, int n){ estimateQuantiles_fp16(A, code, offset, n); }
 	void cquantize(float *code, float *A, unsigned char *out, int n){ quantize(code, A, out, n); }
@@ -231,7 +231,7 @@ extern "C"
 	{ return igemmlt_ampere_8_rowscale((cublasLtHandle_t) context->m_handle, m, n, k, A, B, C, row_scale, lda, ldb, ldc); }
 
 	int cigemmlt_ampere_8(Context *context, int m, int n, int k, const int8_t *A, const int8_t *B, void *C, float *row_scale, int lda, int ldb, int ldc)
-	{ return igemmlt_ampere_8_rowscale((cublasLtHandle_t) context->m_handle, m, n, k, A, B, C, row_scale, lda, ldb, ldc); }
+	{ return igemmlt_ampere_8((cublasLtHandle_t) context->m_handle, m, n, k, A, B, C, row_scale, lda, ldb, ldc); }
 
   #define MAKE_FUNC_CTRANSFORM(fbits, fsrc, ftrgt, ftranspose, dtype, src, target, transpose, bits) \
 	void ctransform_##fbits##_##fsrc##_to_##ftrgt##_##ftranspose(Context *context, dtype *A, dtype *out, int dim1, int dim2) \
diff --git a/cuda_install.sh b/cuda_install.sh
new file mode 100644
index 0000000..856cbe5
--- /dev/null
+++ b/cuda_install.sh
@@ -0,0 +1,77 @@
+URL92=https://developer.nvidia.com/compute/cuda/9.2/Prod2/local_installers/cuda_9.2.148_396.37_linux
+URL100=https://developer.nvidia.com/compute/cuda/10.0/Prod/local_installers/cuda_10.0.130_410.48_linux
+URL101=https://developer.nvidia.com/compute/cuda/10.1/Prod/local_installers/cuda_10.1.105_418.39_linux.run
+URL102=https://developer.download.nvidia.com/compute/cuda/10.2/Prod/local_installers/cuda_10.2.89_440.33.01_linux.run
+URL110=https://developer.download.nvidia.com/compute/cuda/11.0.3/local_installers/cuda_11.0.3_450.51.06_linux.run
+URL111=https://developer.download.nvidia.com/compute/cuda/11.1.1/local_installers/cuda_11.1.1_455.32.00_linux.run
+URL112=https://developer.download.nvidia.com/compute/cuda/11.2.2/local_installers/cuda_11.2.2_460.32.03_linux.run
+URL113=https://developer.download.nvidia.com/compute/cuda/11.3.1/local_installers/cuda_11.3.1_465.19.01_linux.run
+URL114=https://developer.download.nvidia.com/compute/cuda/11.4.4/local_installers/cuda_11.4.4_470.82.01_linux.run
+URL115=https://developer.download.nvidia.com/compute/cuda/11.5.2/local_installers/cuda_11.5.2_495.29.05_linux.run
+URL116=https://developer.download.nvidia.com/compute/cuda/11.6.2/local_installers/cuda_11.6.2_510.47.03_linux.run
+URL117=https://developer.download.nvidia.com/compute/cuda/11.7.0/local_installers/cuda_11.7.0_515.43.04_linux.run
+
+
+CUDA_VERSION=$1
+BASE_PATH=$2
+
+if [[ -n "$CUDA_VERSION" ]]; then
+  if   [[ "$CUDA_VERSION" -eq "92" ]]; then
+    URL=$URL92
+    FOLDER=cuda-9.2
+  elif   [[ "$CUDA_VERSION" -eq "100" ]]; then
+    URL=$URL100
+    FOLDER=cuda-10.0
+  elif   [[ "$CUDA_VERSION" -eq "101" ]]; then
+    URL=$URL101
+    FOLDER=cuda-10.1
+  elif   [[ "$CUDA_VERSION" -eq "102" ]]; then
+    URL=$URL102
+    FOLDER=cuda-10.2
+  elif   [[ "$CUDA_VERSION" -eq "110" ]]; then
+    URL=$URL110
+    FOLDER=cuda-11.0
+  elif   [[ "$CUDA_VERSION" -eq "111" ]]; then
+    URL=$URL111
+    FOLDER=cuda-11.1
+  elif   [[ "$CUDA_VERSION" -eq "112" ]]; then
+    URL=$URL112
+    FOLDER=cuda-11.2
+  elif   [[ "$CUDA_VERSION" -eq "113" ]]; then
+    URL=$URL113
+    FOLDER=cuda-11.3
+  elif [[ "$CUDA_VERSION" -eq "114" ]]; then
+    URL=$URL114
+    FOLDER=cuda-11.4
+  elif [[ "$CUDA_VERSION" -eq "115" ]]; then
+    URL=$URL115
+    FOLDER=cuda-11.5
+  elif [[ "$CUDA_VERSION" -eq "116" ]]; then
+    URL=$URL116
+    FOLDER=cuda-11.6
+  elif [[ "$CUDA_VERSION" -eq "117" ]]; then
+    URL=$URL117
+    FOLDER=cuda-11.7
+  else
+    echo "argument error: No cuda version passed as input. Choose among: {111, 115}"
+  fi
+else
+    echo "argument error: No cuda version passed as input. Choose among: {111, 115}"
+fi
+
+FILE=$(basename $URL)
+
+if [[ -n "$CUDA_VERSION" ]]; then
+  echo $URL
+  echo $FILE
+  wget $URL
+  bash $FILE --no-drm --no-man-page --override --installpath=~/local --librarypath=$BASE_PATH/lib --toolkitpath=$BASE_PATH/$FOLDER/ --toolkit --silent
+  echo "export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$BASE_PATH/$FOLDER/lib64/" >> ~/.bashrc
+  echo "export PATH=$PATH:$BASE_PATH/$FOLDER/bin/" >> ~/.bashrc
+  source ~/.bashrc
+else
+  echo ""
+fi
+
+
+
diff --git a/deploy_from_slurm.sh b/deploy_from_slurm.sh
index 6357e1d..664d40e 100644
--- a/deploy_from_slurm.sh
+++ b/deploy_from_slurm.sh
@@ -1,86 +1,261 @@
 #!/bin/bash
+BASE_PATH=$1
+
 module unload cuda
 module unload gcc
 
+#rm -rf dist build
+#make clean
+#make cleaneggs
+#export CUDA_HOME=
+#make cpuonly
+#
+#if [ ! -f "./bitsandbytes/libbitsandbytes.so" ]; then
+#  # Control will enter here if $DIRECTORY doesn't exist.
+#  echo "Compilation unsuccessul!" 1>&2
+#  exit 64
+#fi
+#CUDA_VERSION=cpu python -m build
+#python -m twine upload dist/* --verbose --repository testpypi
+
 rm -rf dist build
 make clean
 make cleaneggs
-module load cuda/9.2
-module load gcc/7.3.0
-CUDA_HOME=/public/apps/cuda/9.2
-make
-CUDA_VERSION=92 python -m build
-python -m twine upload dist/* --verbose
-module unload cuda
+export CUDA_HOME=$BASE_PATH/cuda-11.0
+make cuda110
 
+if [ ! -f "./bitsandbytes/libbitsandbytes.so" ]; then
+  # Control will enter here if $DIRECTORY doesn't exist.
+  echo "Compilation unsuccessul!" 1>&2
+  exit 64
+fi
+CUDA_VERSION=110 python -m build
+python -m twine upload dist/* --verbose --repository testpypi
 
 rm -rf dist build
 make clean
 make cleaneggs
-module load cuda/10.0
-CUDA_HOME=/public/apps/cuda/10.0
-make cuda10x
-CUDA_VERSION=100 python -m build
-python -m twine upload dist/* --verbose
-module unload cuda
-module unload gcc
-module load gcc/8.4
+export CUDA_HOME=$BASE_PATH/cuda-11.1
+make cuda11x
+
+if [ ! -f "./bitsandbytes/libbitsandbytes.so" ]; then
+  # Control will enter here if $DIRECTORY doesn't exist.
+  echo "Compilation unsuccessul!" 1>&2
+  exit 64
+fi
+CUDA_VERSION=111 python -m build
+python -m twine upload dist/* --verbose --repository testpypi
 
 rm -rf dist build
 make clean
 make cleaneggs
-module load cuda/10.1
-CUDA_HOME=/public/apps/cuda/10.1
-make cuda10x
-CUDA_VERSION=101 python -m build
-python -m twine upload dist/* --verbose
-module unload cuda
+export CUDA_HOME=$BASE_PATH/cuda-11.2
+make cuda11x
+
+if [ ! -f "./bitsandbytes/libbitsandbytes.so" ]; then
+  # Control will enter here if $DIRECTORY doesn't exist.
+  echo "Compilation unsuccessul!" 1>&2
+  exit 64
+fi
+CUDA_VERSION=112 python -m build
+python -m twine upload dist/* --verbose --repository testpypi
 
 rm -rf dist build
 make clean
 make cleaneggs
-module load cuda/10.2
-CUDA_HOME=/public/apps/cuda/10.2/
-make cuda10x
-CUDA_VERSION=102 python -m build
-python -m twine upload dist/* --verbose
-module unload cuda
+export CUDA_HOME=$BASE_PATH/cuda-11.3
+make cuda11x
 
+if [ ! -f "./bitsandbytes/libbitsandbytes.so" ]; then
+  # Control will enter here if $DIRECTORY doesn't exist.
+  echo "Compilation unsuccessul!" 1>&2
+  exit 64
+fi
+CUDA_VERSION=113 python -m build
+python -m twine upload dist/* --verbose --repository testpypi
 
 rm -rf dist build
 make clean
 make cleaneggs
-module load cuda/11.0
-CUDA_HOME=/public/apps/cuda/11.0
-make cuda110
-CUDA_VERSION=110 python -m build
-python -m twine upload dist/* --verbose
-module unload cuda
+export CUDA_HOME=$BASE_PATH/cuda-11.4
+make cuda11x
+
+if [ ! -f "./bitsandbytes/libbitsandbytes.so" ]; then
+  # Control will enter here if $DIRECTORY doesn't exist.
+  echo "Compilation unsuccessul!" 1>&2
+  exit 64
+fi
+CUDA_VERSION=114 python -m build
+python -m twine upload dist/* --verbose --repository testpypi
 
 rm -rf dist build
 make clean
 make cleaneggs
-module load cuda/11.1
-CUDA_HOME=/public/apps/cuda/11.1
+export CUDA_HOME=$BASE_PATH/cuda-11.5
 make cuda11x
-CUDA_VERSION=111 python -m build
-python -m twine upload dist/* --verbose
-module unload cuda
 
+if [ ! -f "./bitsandbytes/libbitsandbytes.so" ]; then
+  # Control will enter here if $DIRECTORY doesn't exist.
+  echo "Compilation unsuccessul!" 1>&2
+  exit 64
+fi
+CUDA_VERSION=115 python -m build
+python -m twine upload dist/* --verbose --repository testpypi
+
+#rm -rf dist build
+#make clean
+#make cleaneggs
+#export CUDA_HOME=$BASE_PATH/cuda-11.6
+#
+#make cuda11x
+#if [ ! -f "./bitsandbytes/libbitsandbytes.so" ]; then
+#  # Control will enter here if $DIRECTORY doesn't exist.
+#  echo "Compilation unsuccessul!" 1>&2
+#  exit 64
+#fi
+#CUDA_VERSION=116 python -m build
+#python -m twine upload dist/* --verbose --repository testpypi
+#
 rm -rf dist build
 make clean
 make cleaneggs
-module load cuda/11.2
-CUDA_HOME=/public/apps/cuda/11.2
+export CUDA_HOME=$BASE_PATH/cuda-11.7
 make cuda11x
-CUDA_VERSION=112 python -m build
-python -m twine upload dist/* --verbose
-module unload cuda
+
+if [ ! -f "./bitsandbytes/libbitsandbytes.so" ]; then
+  # Control will enter here if $DIRECTORY doesn't exist.
+  echo "Compilation unsuccessul!" 1>&2
+  exit 64
+fi
+CUDA_VERSION=117 python -m build
+python -m twine upload dist/* --verbose --repository testpypi
+
 
 rm -rf dist build
 make clean
 make cleaneggs
-CUDA_HOME=/private/home/timdettmers/git/autoswap/local/cuda-11.3 make cuda11x
-CUDA_VERSION=113 python -m build
+export CUDA_HOME=$BASE_PATH/cuda-10.2
+make cuda10x_nomatmul
+
+if [ ! -f "./bitsandbytes/libbitsandbytes.so" ]; then
+  # Control will enter here if $DIRECTORY doesn't exist.
+  echo "Compilation unsuccessul!" 1>&2
+  exit 64
+fi
+CUDA_VERSION=102-nomatmul python -m build
+python -m twine upload dist/* --verbose --repository testpypi
+
+
+rm -rf dist build
+make clean
+make cleaneggs
+export CUDA_HOME=$BASE_PATH/cuda-11.0
+make cuda110_nomatmul
+
+if [ ! -f "./bitsandbytes/libbitsandbytes.so" ]; then
+  # Control will enter here if $DIRECTORY doesn't exist.
+  echo "Compilation unsuccessul!" 1>&2
+  exit 64
+fi
+CUDA_VERSION=110-nomatmul python -m build
+python -m twine upload dist/* --verbose --repository testpypi
+
+
+rm -rf dist build
+make clean
+make cleaneggs
+export CUDA_HOME=$BASE_PATH/cuda-11.1
+make cuda11x_nomatmul
+
+if [ ! -f "./bitsandbytes/libbitsandbytes.so" ]; then
+  # Control will enter here if $DIRECTORY doesn't exist.
+  echo "Compilation unsuccessul!" 1>&2
+  exit 64
+fi
+CUDA_VERSION=111-nomatmul python -m build
+python -m twine upload dist/* --verbose --repository testpypi
+
+rm -rf dist build
+make clean
+make cleaneggs
+export CUDA_HOME=$BASE_PATH/cuda-11.2
+make cuda11x_nomatmul
+
+if [ ! -f "./bitsandbytes/libbitsandbytes.so" ]; then
+  # Control will enter here if $DIRECTORY doesn't exist.
+  echo "Compilation unsuccessul!" 1>&2
+  exit 64
+fi
+CUDA_VERSION=112-nomatmul python -m build
+python -m twine upload dist/* --verbose --repository testpypi
+
+rm -rf dist build
+make clean
+make cleaneggs
+export CUDA_HOME=$BASE_PATH/cuda-11.3
+make cuda11x_nomatmul
+
+if [ ! -f "./bitsandbytes/libbitsandbytes.so" ]; then
+  # Control will enter here if $DIRECTORY doesn't exist.
+  echo "Compilation unsuccessul!" 1>&2
+  exit 64
+fi
+CUDA_VERSION=113-nomatmul python -m build
+python -m twine upload dist/* --verbose --repository testpypi
+
+rm -rf dist build
+make clean
+make cleaneggs
+export CUDA_HOME=$BASE_PATH/cuda-11.4
+make cuda11x_nomatmul
+
+if [ ! -f "./bitsandbytes/libbitsandbytes.so" ]; then
+  # Control will enter here if $DIRECTORY doesn't exist.
+  echo "Compilation unsuccessul!" 1>&2
+  exit 64
+fi
+CUDA_VERSION=114-nomatmul python -m build
+python -m twine upload dist/* --verbose --repository testpypi
+
+rm -rf dist build
+make clean
+make cleaneggs
+export CUDA_HOME=$BASE_PATH/cuda-11.5
+make cuda11x_nomatmul
+
+if [ ! -f "./bitsandbytes/libbitsandbytes.so" ]; then
+  # Control will enter here if $DIRECTORY doesn't exist.
+  echo "Compilation unsuccessul!" 1>&2
+  exit 64
+fi
+CUDA_VERSION=115-nomatmul python -m build
+python -m twine upload dist/* --verbose --repository testpypi
+
+rm -rf dist build
+make clean
+make cleaneggs
+export CUDA_HOME=$BASE_PATH/cuda-11.6
+
+make cuda11x_nomatmul
+if [ ! -f "./bitsandbytes/libbitsandbytes.so" ]; then
+  # Control will enter here if $DIRECTORY doesn't exist.
+  echo "Compilation unsuccessul!" 1>&2
+  exit 64
+fi
+CUDA_VERSION=116-nomatmul python -m build
+python -m twine upload dist/* --verbose --repository testpypi
+
+rm -rf dist build
+make clean
+make cleaneggs
+export CUDA_HOME=$BASE_PATH/cuda-11.7
+make cuda11x_nomatmul
+
+if [ ! -f "./bitsandbytes/libbitsandbytes.so" ]; then
+  # Control will enter here if $DIRECTORY doesn't exist.
+  echo "Compilation unsuccessul!" 1>&2
+  exit 64
+fi
+CUDA_VERSION=117-nomatmul python -m build
 python -m twine upload dist/* --verbose
-module unload cuda
+python -m twine upload dist/* --verbose --repository testpypi
diff --git a/quicktest.py b/quicktest.py
new file mode 100644
index 0000000..2db6afa
--- /dev/null
+++ b/quicktest.py
@@ -0,0 +1,90 @@
+import torch
+import bitsandbytes as bnb
+import bitsandbytes.functional as F
+
+from itertools import product
+
+def test_igemmlt(dim1, dim2, dim3, dim4, dims, ldb):
+    k = 25
+    for i in range(k):
+        if dims == 2:
+            A = torch.randint(-128, 127, size=(dim1, dim3), device='cuda').to(torch.int8)
+        elif dims == 3:
+            A = torch.randint(-128, 127, size=(dim1, dim2, dim3), device='cuda').to(torch.int8)
+        B = torch.randint(-128, 127, size=(dim4, dim3), device='cuda').to(torch.int8)
+        C1 = torch.matmul(A.float(), B.t().float())
+
+        A2, SA = F.transform(A, 'col32')
+        B2, SB = F.transform(B, 'colx')
+        if dims == 2:
+            C2, SC = F.transform(torch.zeros(A.shape[0], B.shape[0], dtype=torch.int32, device='cuda'), 'col32')
+        else:
+            C2, SC = F.transform(torch.zeros(A.shape[0], A.shape[1], B.shape[0], dtype=torch.int32, device='cuda'), 'col32')
+        F.igemmlt(A2, B2, C2, SA, SB, SC)
+        C3, S = F.transform(C2, 'row', state=SC)
+        #torch.testing.assert_allclose(C1, C3.float())
+        #print(C1)
+        #print(C2)
+        #print(C3)
+        allclose = torch.allclose(C1, C3.float())
+        if allclose:
+            print(C1)
+            print(C2)
+            print(C3)
+
+        ## transposed
+        #A = torch.randint(-128, 127, size=(dim4, dim3), device='cuda').to(torch.int8)
+        #if dims == 2:
+        #    B = torch.randint(-128, 127, size=(dim1, dim3), device='cuda').to(torch.int8)
+        #    C1 = torch.matmul(A.float(), B.float().t())
+        #elif dims == 3:
+        #    B = torch.randint(-128, 127, size=(dim1, dim2, dim3), device='cuda').to(torch.int8)
+        #    C1 = torch.matmul(B.float(), A.t().float())
+        #    C1 = C1.permute([2, 0, 1])
+
+        #A2, SA = F.transform(A, 'col32')
+        #B2, SB = F.transform(B, 'colx')
+        #if dims == 2:
+        #    C2, SC = F.transform(torch.zeros(A.shape[0], B.shape[0], dtype=torch.int32, device='cuda'), 'col32')
+        #else:
+        #    C2 = torch.zeros(A.shape[0], B.shape[0], B.shape[1], dtype=torch.int32, device='cuda')
+        #    state = (C2.shape, 'row', A.shape[0])
+        #    C2, SC = F.transform(C2, 'col32', state=state)
+        #F.igemmlt(A2, B2, C2, SA, SB, SC)
+        #C3, S = F.transform(C2, 'row', state=SC, ld=[0])
+        #torch.testing.assert_allclose(C1, C3.float())
+
+        ## weight update
+        #if dims == 3:
+        #    A = torch.randint(-128, 127, size=(dim1, dim2, dim3), device='cuda').to(torch.int8)
+        #    B = torch.randint(-128, 127, size=(dim1, dim2, dim4), device='cuda').to(torch.int8)
+        #    C1 = torch.matmul(B.view(-1, B.shape[-1]).t().float(), A.view(-1, A.shape[-1]).float())
+
+        #    A2, SA = F.transform(A.view(-1, A.shape[-1]).t().contiguous(), 'colx')
+        #    B2, SB = F.transform(B.view(-1, B.shape[-1]).t().contiguous(), 'col32')
+        #    C2 = torch.zeros(B.shape[-1], A.shape[-1], dtype=torch.int32, device='cuda')
+        #    C2, SC = F.transform(C2, 'col32')
+        #    F.igemmlt(B2, A2, C2, SB, SA, SC)
+        #    C3, S = F.transform(C2, 'row', state=SC)
+        #    torch.testing.assert_allclose(C1, C3.float())
+
+
+dims = (2, 3)
+ldb = [0]
+
+n = 2
+dim1 = torch.randint(1,256, size=(n,)).tolist()
+dim2 = torch.randint(32,512, size=(n,)).tolist()
+dim3 = torch.randint(32,1024, size=(n,)).tolist()
+dim4 = torch.randint(32,1024, size=(n,)).tolist()
+values = list(product(dim1,dim2,dim3,dim4,dims, ldb))
+
+for ldb in range(32, 4096, 32):
+#for ldb in [None]:
+    val = test_igemmlt(2, 2, 2, 2, 2, ldb)
+    if val:
+        print(val, ldb)
+    else:
+        print('nope', ldb)
+#for val in values:
+    #test_igemmlt(*val)
diff --git a/setup.py b/setup.py
index 2402c02..6275ddd 100644
--- a/setup.py
+++ b/setup.py
@@ -11,13 +11,14 @@ def read(fname):
 
 
 version = os.getenv("CUDA_VERSION", "cpu")
+prefix = '' if version == 'cpu' else 'cuda'
 
 setup(
-    name="bitsandbytes",
-    version=f"0.26.0+{version}",
+    name=f"bitsandbytes-{prefix}{version}",
+    version=f"0.30.0",
     author="Tim Dettmers",
     author_email="dettmers@cs.washington.edu",
-    description="8-bit optimizers and quantization routines.",
+    description="8-bit optimizers and matrix multiplication routines.",
     license="MIT",
     keywords="gpu optimizers optimization 8-bit quantization compression",
     url="http://packages.python.org/bitsandbytes",
diff --git a/tests/test_functional.py b/tests/test_functional.py
index 2d58fac..bfc3e28 100644
--- a/tests/test_functional.py
+++ b/tests/test_functional.py
@@ -992,6 +992,7 @@ inner = torch.randint(1,4*1024, size=(n,)).tolist()
 values = list(zip(dim1, dim4, inner))
 names = ['dim1_{0}_dim4_{1}_inner_{2}'.format(*vals) for vals in values]
 @pytest.mark.parametrize("dim1, dim4, inner", values, ids=names)
+@pytest.mark.skip("Row scale has some bugs for ampere")
 def test_igemmlt_row_scale(dim1, dim4, inner):
     formatB = F.get_special_format_str()
     err1, err2, err3 = [], [], []
@@ -1064,6 +1065,7 @@ dim4 = [12288, 4096]
 values = list(zip(dim1, dim4, inner))
 names = ['dim1_{0}_dim4_{1}_inner_{2}'.format(*vals) for vals in values]
 @pytest.mark.parametrize("dim1, dim4, inner", values, ids=names)
+@pytest.mark.skip("Row scale has some bugs for ampere")
 def test_row_scale_bench(dim1, dim4, inner):
     err1, err2, err3 = [], [], []
     relerr1, relerr2 = [], []
@@ -1183,6 +1185,7 @@ def test_transform_to_row(dim1, dim2, dtype, orderA, orderOut):
 
 def test_overflow():
     formatB = F.get_special_format_str()
+    print(formatB)
     for i in range(2):
         a = torch.arange(5, 15).cuda().to(torch.int8).view(-1,1 )
         b = torch.arange(5, 15).cuda().to(torch.int8).view(-1,1 )