/// <summary>
/// Returns the PTX instruction set to use, based on the PTX architecture and
/// installed Cuda drivers.
/// </summary>
/// <param name="architecture">The PTX architecture</param>
/// <param name="installedDriverVersion">The Cuda driver version</param>
/// <returns>The PTX instruction set</returns>
public static CudaInstructionSet GetInstructionSet(
CudaArchitecture architecture,
CudaDriverVersion installedDriverVersion) =>
TryGetInstructionSet(
architecture,
installedDriverVersion,
out var minDriverVersion,
/// <summary>
/// Tries to determine the PTX instruction set to use, based on the PTX
/// architecture and installed Cuda drivers.
/// </summary>
/// <param name="architecture">The PTX architecture</param>
/// <param name="installedDriverVersion">The Cuda driver version</param>
/// <param name="minDriverVersion">The minimum driver version.</param>
/// <param name="instructionSet">The instruction set (if any).</param>
/// <returns>True, if the instruction set could be determined.</returns>
public static bool TryGetInstructionSet(
CudaArchitecture architecture,
CudaDriverVersion installedDriverVersion,
out CudaDriverVersion minDriverVersion,
out CudaInstructionSet instructionSet)
{
instructionSet = default;
var architectureMinDriverVersion = CudaDriverVersionUtils
.GetMinimumDriverVersion(architecture);
minDriverVersion = architectureMinDriverVersion;
foreach (var supportedSet in PTXCodeGenerator.SupportedInstructionSets)
{
var instructionSetMinDriverVersion = CudaDriverVersionUtils.
GetMinimumDriverVersion(supportedSet);
minDriverVersion =
architectureMinDriverVersion >= instructionSetMinDriverVersion
? architectureMinDriverVersion
: instructionSetMinDriverVersion;
if (installedDriverVersion >= minDriverVersion)
{
instructionSet = supportedSet;
return(true);
}
}
return(false);
}
/// <summary>
/// Returns the PTX instruction set to use, based on the PTX architecture and
/// installed CUDA drivers.
/// </summary>
/// <param name="architecture">The PTX architecture</param>
/// <param name="installedDriverVersion">The CUDA driver version</param>
/// <returns>The PTX instruction set</returns>
public static PTXInstructionSet GetInstructionSet(
PTXArchitecture architecture,
CudaDriverVersion installedDriverVersion)
{
var architectureMinDriverVersion = CudaDriverVersionUtils
.GetMinimumDriverVersion(architecture);
var minDriverVersion = architectureMinDriverVersion;
foreach (var instructionSet in PTXCodeGenerator.SupportedInstructionSets)
{
var instructionSetMinDriverVersion = CudaDriverVersionUtils.
GetMinimumDriverVersion(instructionSet);
minDriverVersion =
architectureMinDriverVersion >= instructionSetMinDriverVersion
? architectureMinDriverVersion
: instructionSetMinDriverVersion;
if (installedDriverVersion >= minDriverVersion)
{
return(instructionSet);
}
}
throw new NotSupportedException(
string.Format(
RuntimeErrorMessages.NotSupportedDriverVersion,
installedDriverVersion,
minDriverVersion));
}
/// <summary>
/// Resolves the current driver version.
/// </summary>
/// <param name="driverVersion">The resolved driver version.</param>
/// <returns>The error status.</returns>
public CudaError GetDriverVersion(out CudaDriverVersion driverVersion)
{
var error = cuDriverGetVersion(out var driverVersionValue);
if (error != CudaError.CUDA_SUCCESS)
{
driverVersion = default;
return(error);
}
driverVersion = CudaDriverVersion.FromValue(driverVersionValue);
return(CudaError.CUDA_SUCCESS);
}
