Package freenet.support.CPUInformation
Class IntelInfoImpl
- java.lang.Object
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- freenet.support.CPUInformation.CPUIDCPUInfo
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- freenet.support.CPUInformation.IntelInfoImpl
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- All Implemented Interfaces:
CPUInfo
,IntelCPUInfo
class IntelInfoImpl extends CPUIDCPUInfo implements IntelCPUInfo
Moved out of CPUID.java Ref: https://software.intel.com/en-us/articles/intel-architecture-and-processor-identification-with-cpuid-model-and-family-numbers Ref: http://en.wikipedia.org/wiki/List_of_Intel_CPU_microarchitectures- Since:
- 0.8.7
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Constructor Summary
Constructors Constructor Description IntelInfoImpl()
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description String
getCPUModelString()
boolean
IsAtomCompatible()
Supports the SSE 2 and SSE 3 instructions.boolean
IsBroadwellCompatible()
Supports the SSE 3, 4.1, 4.2 instructions.boolean
IsCore2Compatible()
Supports the SSE 3 instructions.boolean
IsCoreiCompatible()
Supports the SSE 3, 4.1, 4.2 instructions.boolean
IsHaswellCompatible()
Supports the SSE 3, 4.1, 4.2 instructions.boolean
IsIvyCompatible()
Supports the SSE 3, 4.1, 4.2 instructions.boolean
IsPentium2Compatible()
boolean
IsPentium3Compatible()
boolean
IsPentium4Compatible()
Supports the SSE 2 instructions.boolean
IsPentiumCompatible()
boolean
IsPentiumMCompatible()
boolean
IsPentiumMMXCompatible()
boolean
IsSandyCompatible()
Supports the SSE 3, 4.1, 4.2 instructions.boolean
IsSkylakeCompatible()
Supports the AVX-512 instrutions.-
Methods inherited from class freenet.support.CPUInformation.CPUIDCPUInfo
getVendor, hasABM, hasADX, hasAES, hasAVX, hasAVX2, hasAVX512, hasBMI1, hasBMI2, hasFMA3, hasMMX, hasMOVBE, hasSSE, hasSSE2, hasSSE3, hasSSE41, hasSSE42, hasSSE4A, hasTBM, hasX64
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Method Detail
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IsPentiumCompatible
public boolean IsPentiumCompatible()
- Specified by:
IsPentiumCompatible
in interfaceIntelCPUInfo
- Returns:
- true if the CPU is at least a Pentium CPU.
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IsPentiumMMXCompatible
public boolean IsPentiumMMXCompatible()
- Specified by:
IsPentiumMMXCompatible
in interfaceIntelCPUInfo
- Returns:
- true if the CPU is at least a Pentium which implements the MMX instruction/feature set.
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IsPentium2Compatible
public boolean IsPentium2Compatible()
- Specified by:
IsPentium2Compatible
in interfaceIntelCPUInfo
- Returns:
- true if the CPU implements at least the p6 instruction set (Pentium II or better). Please note that an PentimPro CPU causes/should cause this method to return false (due to that CPU using a very early implementation of the p6 instruction set. No MMX etc.)
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IsPentium3Compatible
public boolean IsPentium3Compatible()
- Specified by:
IsPentium3Compatible
in interfaceIntelCPUInfo
- Returns:
- true if the CPU implements at least a Pentium III level of the p6 instruction/feature set.
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IsPentium4Compatible
public boolean IsPentium4Compatible()
Description copied from interface:IntelCPUInfo
Supports the SSE 2 instructions. Does not necessarily support SSE 3. https://en.wikipedia.org/wiki/Pentium_4- Specified by:
IsPentium4Compatible
in interfaceIntelCPUInfo
- Returns:
- true if the CPU implements at least a Pentium IV level instruction/feature set.
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IsPentiumMCompatible
public boolean IsPentiumMCompatible()
- Specified by:
IsPentiumMCompatible
in interfaceIntelCPUInfo
- Returns:
- true if the CPU implements at least a Pentium M level instruction/feature set.
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IsAtomCompatible
public boolean IsAtomCompatible()
Description copied from interface:IntelCPUInfo
Supports the SSE 2 and SSE 3 instructions. https://en.wikipedia.org/wiki/Atom_processor- Specified by:
IsAtomCompatible
in interfaceIntelCPUInfo
- Returns:
- true if the CPU implements at least a Atom level instruction/feature set.
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IsCore2Compatible
public boolean IsCore2Compatible()
Description copied from interface:IntelCPUInfo
Supports the SSE 3 instructions.- Specified by:
IsCore2Compatible
in interfaceIntelCPUInfo
- Returns:
- true if the CPU implements at least a Core2 level instruction/feature set.
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IsCoreiCompatible
public boolean IsCoreiCompatible()
Description copied from interface:IntelCPUInfo
Supports the SSE 3, 4.1, 4.2 instructions. In general, this requires 45nm or smaller process. This is the Nehalem architecture. ref: https://en.wikipedia.org/wiki/Nehalem_%28microarchitecture%29- Specified by:
IsCoreiCompatible
in interfaceIntelCPUInfo
- Returns:
- true if the CPU implements at least a Corei level instruction/feature set.
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IsSandyCompatible
public boolean IsSandyCompatible()
Description copied from interface:IntelCPUInfo
Supports the SSE 3, 4.1, 4.2 instructions. Supports the AVX 1 instructions. In general, this requires 32nm or smaller process.- Specified by:
IsSandyCompatible
in interfaceIntelCPUInfo
- Returns:
- true if the CPU implements at least a SandyBridge level instruction/feature set.
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IsIvyCompatible
public boolean IsIvyCompatible()
Description copied from interface:IntelCPUInfo
Supports the SSE 3, 4.1, 4.2 instructions. Supports the AVX 1 instructions. In general, this requires 22nm or smaller process. UNUSED, there is no specific GMP build for Ivy Bridge, and this is never called from NativeBigInteger. Ivy Bridge is a successor to Sandy Bridge, so use IsSandyCompatible().- Specified by:
IsIvyCompatible
in interfaceIntelCPUInfo
- Returns:
- true if the CPU implements at least a IvyBridge level instruction/feature set.
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IsHaswellCompatible
public boolean IsHaswellCompatible()
Description copied from interface:IntelCPUInfo
Supports the SSE 3, 4.1, 4.2 instructions. Supports the AVX 1, 2 instructions. Supports the BMI 1, 2 instructions. WARNING - GMP 6 uses the BMI2 MULX instruction for the "coreihwl" binaries. Only Core i3/i5/i7 Haswell processors support BMI2. Requires support for all 6 of these Corei features: FMA3 MOVBE ABM AVX2 BMI1 BMI2 Pentium/Celeron Haswell processors do NOT support BMI2 and are NOT compatible. Those processors will be Sandy-compatible if they have AVX 1 support, and Corei-compatible if they do not. ref: https://software.intel.com/en-us/articles/how-to-detect-new-instruction-support-in-the-4th-generation-intel-core-processor-family ref: https://en.wikipedia.org/wiki/Haswell_%28microarchitecture%29 In general, this requires 22nm or smaller process.- Specified by:
IsHaswellCompatible
in interfaceIntelCPUInfo
- Returns:
- true if the CPU implements at least a Haswell level instruction/feature set.
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IsBroadwellCompatible
public boolean IsBroadwellCompatible()
Description copied from interface:IntelCPUInfo
Supports the SSE 3, 4.1, 4.2 instructions. Supports the AVX 1, 2 instructions. In general, this requires 14nm or smaller process. NOT FULLY USED as of GMP 6.0. All GMP coreibwl binaries are duplicates of binaries for older technologies, so we do not distribute any. However, this is called from NativeBigInteger. Broadwell is supported in GMP 6.1 and requires the ADX instructions. Requires support for all 7 of these Corei features: FMA3 MOVBE ABM AVX2 BMI1 BMI2 ADX Pentium/Celeron Broadwell processors that do not support these instruction sets are not compatible. Those processors will be Sandy-compatible if they have AVX 1 support, and Corei-compatible if they do not.- Specified by:
IsBroadwellCompatible
in interfaceIntelCPUInfo
- Returns:
- true if the CPU implements at least a Broadwell level instruction/feature set.
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IsSkylakeCompatible
public boolean IsSkylakeCompatible()
Supports the AVX-512 instrutions.- Specified by:
IsSkylakeCompatible
in interfaceIntelCPUInfo
- Since:
- 0.9.41
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getCPUModelString
public String getCPUModelString() throws UnknownCPUException
- Specified by:
getCPUModelString
in interfaceCPUInfo
- Overrides:
getCPUModelString
in classCPUIDCPUInfo
- Returns:
- A string detailing what type of CPU that is present in the machine. I.e. 'Pentium IV' etc.
- Throws:
UnknownCPUException
- If for any reason the retrieval of the requested information failed. The message encapsulated in the execption indicates the cause of the failure.
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