Data type support

This topic lists the data type support for the hipSPARSELt library on AMD and NVIDIA GPUs. The icons representing different levels of support are explained in the following table.

Icon	Definition
❌	Not supported
✅	Full support

For more information about data type support for the other ROCm libraries, see Data types and precision support page.

Supported input and output types

List of supported input and output types:

Supported Input/Output Types

Input/output types	Library data type	AMD supports	NVIDIA supports
int8	HIP_R_8I	✅	✅
float8	HIP_R_8F_E4M3	✅	✅
bfloat8	HIP_R_8F_E5M2	✅	✅
int16	Not supported	❌	❌
float16	HIP_R_16F	✅	✅
bfloat16	HIP_R_16BF	✅	✅
int32	HIP_R_32I	❌	✅
tensorfloat32	Not supported	❌	❌
float32	HIP_R_32F	❌	✅
float64	Not supported	❌	❌

Supported accumulator types

List of supported accumulator types:

Supported Compute Types

Accumulator types	Library data type	AMD supports	NVIDIA supports
int8	Not supported	❌	❌
float8	Not supported	❌	❌
bfloat8	Not supported	❌	❌
int16	Not supported	❌	❌
float16	HIPSPARSELT_COMPUTE_16F	❌	✅
bfloat16	Not supported	❌	❌
int32	HIPSPARSELT_COMPUTE_32I	✅	✅
tensorfloat32	Not supported	❌	❌
float32	HIPSPARSELT_COMPUTE_32F	✅	✅
float64	Not supported	❌	❌

Supported compute types

List of supported compute types for specific input and output types:

Input A/B	Input C	Output D	Compute type	Backend	Support LLVM target for HIP backend
HIP_R_32F	HIP_R_32F	HIP_R_32F	HIPSPARSELT_COMPUTE_32F	CUDA
HIP_R_16F	HIP_R_16F	HIP_R_16F	HIPSPARSELT_COMPUTE_32F	HIP / CUDA	gfx942, gfx950
HIP_R_16F	HIP_R_16F	HIP_R_16F	HIPSPARSELT_COMPUTE_16F	CUDA
HIP_R_16BF	HIP_R_16BF	HIP_R_16BF	HIPSPARSELT_COMPUTE_32F	HIP / CUDA	gfx942, gfx950
HIP_R_8I	HIP_R_8I	HIP_R_8I	HIPSPARSELT_COMPUTE_32I	HIP / CUDA	gfx942, gfx950
HIP_R_8I	HIP_R_32I	HIP_R_32I	HIPSPARSELT_COMPUTE_32I	CUDA
HIP_R_8I	HIP_R_16F	HIP_R_16F	HIPSPARSELT_COMPUTE_32I	HIP / CUDA	gfx942, gfx950
HIP_R_8I	HIP_R_16BF	HIP_R_16BF	HIPSPARSELT_COMPUTE_32I	HIP / CUDA	gfx942, gfx950
HIP_R_8F_E4M3	HIP_R_16F	HIP_R_8F_E4M3	HIPSPARSELT_COMPUTE_32F	CUDA
HIP_R_8F_E4M3	HIP_R_16BF	HIP_R_8F_E4M3	HIPSPARSELT_COMPUTE_32F	CUDA
HIP_R_8F_E4M3	HIP_R_16F	HIP_R_16F	HIPSPARSELT_COMPUTE_32F	CUDA
HIP_R_8F_E4M3	HIP_R_16BF	HIP_R_16BF	HIPSPARSELT_COMPUTE_32F	CUDA
HIP_R_8F_E4M3	HIP_R_32F	HIP_R_32F	HIPSPARSELT_COMPUTE_32F	HIP / CUDA	gfx950
HIP_R_8F_E5M2	HIP_R_16F	HIP_R_8F_E5M2	HIPSPARSELT_COMPUTE_32F	CUDA
HIP_R_8F_E5M2	HIP_R_16BF	HIP_R_8F_E5M2	HIPSPARSELT_COMPUTE_32F	CUDA
HIP_R_8F_E5M2	HIP_R_16F	HIP_R_16F	HIPSPARSELT_COMPUTE_32F	CUDA
HIP_R_8F_E5M2	HIP_R_16BF	HIP_R_16BF	HIPSPARSELT_COMPUTE_32F	CUDA
HIP_R_8F_E5M2	HIP_R_32F	HIP_R_32F	HIPSPARSELT_COMPUTE_32F	HIP / CUDA	gfx950