PGI Linux x64 Compiler Tests
GCC and Clang and PGI Compiler tests by Michael Larabel for a future article.


PGI Compiler 17.4: 

	Processor: Intel Core i7-6800K @ 3.80GHz (12 Cores), Motherboard: MSI X99A WORKSTATION (MS-7A54) v1.0, Chipset: Intel Xeon E7 v4/Xeon, Memory: 16384MB, Disk: 120GB Samsung SSD 850 + 4 x 120GB TOSHIBA-TR150, Graphics: LLVMpipe, Audio: Realtek ALC1150, Monitor: ASUS PB278, Network: Intel Connection

	OS: Ubuntu 17.04, Kernel: 4.11.0-999-generic (x86_64) 20170418, Desktop: Unity 7.5.0, Display Server: X Server 1.19.3, Display Driver: nouveau 1.0.14, OpenGL: 3.3 Mesa 17.0.3 Gallium 0.4 (LLVM 4.0 256 bits), Vulkan: 1.0.42, Compiler: PGI Compiler 17.4-0, File-System: ext4, Screen Resolution: 2560x1440

GCC 6.3.0: 

	Processor: Intel Core i7-6800K @ 3.80GHz (12 Cores), Motherboard: MSI X99A WORKSTATION (MS-7A54) v1.0, Chipset: Intel Xeon E7 v4/Xeon, Memory: 16384MB, Disk: 120GB Samsung SSD 850 + 4 x 120GB TOSHIBA-TR150, Graphics: LLVMpipe, Audio: Realtek ALC1150, Monitor: ASUS PB278, Network: Intel Connection

	OS: Ubuntu 17.04, Kernel: 4.11.0-999-generic (x86_64) 20170418, Desktop: Unity 7.5.0, Display Server: X Server 1.19.3, Display Driver: nouveau 1.0.14, OpenGL: 3.3 Mesa 17.0.3 Gallium 0.4 (LLVM 4.0 256 bits), Vulkan: 1.0.42, Compiler: GCC 6.3.0 20170406, File-System: ext4, Screen Resolution: 2560x1440

LLVM Clang 4.0: 

	Processor: Intel Core i7-6800K @ 3.80GHz (12 Cores), Motherboard: MSI X99A WORKSTATION (MS-7A54) v1.0, Chipset: Intel Xeon E7 v4/Xeon, Memory: 16384MB, Disk: 120GB Samsung SSD 850 + 4 x 120GB TOSHIBA-TR150, Graphics: LLVMpipe, Audio: Realtek ALC1150, Monitor: ASUS PB278, Network: Intel Connection

	OS: Ubuntu 17.04, Kernel: 4.11.0-999-generic (x86_64) 20170418, Desktop: Unity 7.5.0, Display Server: X Server 1.19.3, Display Driver: nouveau 1.0.14, OpenGL: 3.3 Mesa 17.0.3 Gallium 0.4 (LLVM 4.0 256 bits), Vulkan: 1.0.42, Compiler: Clang 4.0.0-1ubuntu1, File-System: ext4, Screen Resolution: 2560x1440


C-Ray 1.1
Total Time
Seconds < Lower Is Better
PGI Compiler 17.4 . 19.94 |====================================================
GCC 6.3.0 ......... 15.82 |=========================================
LLVM Clang 4.0 .... 19.07 |==================================================


GraphicsMagick 1.3.19
Operation: HWB Color Space
Iterations Per Minute > Higher Is Better
PGI Compiler 17.4 . 116 |================================
GCC 6.3.0 ......... 194 |======================================================
LLVM Clang 4.0 .... 167 |==============================================


GraphicsMagick 1.3.19
Operation: Resizing
Iterations Per Minute > Higher Is Better
PGI Compiler 17.4 . 103 |=================================
GCC 6.3.0 ......... 169 |======================================================
LLVM Clang 4.0 .... 116 |=====================================


GraphicsMagick 1.3.19
Operation: Sharpen
Iterations Per Minute > Higher Is Better
PGI Compiler 17.4 . 75  |================================
GCC 6.3.0 ......... 128 |======================================================
LLVM Clang 4.0 .... 52  |======================


Timed MAFFT Alignment 6.864
Multiple Sequence Alignment
Seconds < Lower Is Better
PGI Compiler 17.4 . 17.14 |====================================================
GCC 6.3.0 ......... 3.79  |===========
LLVM Clang 4.0 .... 4.10  |============


SciMark 2.0
Computational Test: Jacobi Successive Over-Relaxation
Mflops > Higher Is Better
PGI Compiler 17.4 . 1107.36 |==============================
GCC 6.3.0 ......... 1223.77 |==================================
LLVM Clang 4.0 .... 1825.73 |==================================================


SciMark 2.0
Computational Test: Dense LU Matrix Factorization
Mflops > Higher Is Better
PGI Compiler 17.4 . 3444.29 |=================================
GCC 6.3.0 ......... 2973.35 |============================
LLVM Clang 4.0 .... 5253.99 |==================================================


SciMark 2.0
Computational Test: Sparse Matrix Multiply
Mflops > Higher Is Better
PGI Compiler 17.4 . 2298.88 |========================================
GCC 6.3.0 ......... 2751.17 |================================================
LLVM Clang 4.0 .... 2872.52 |==================================================


SciMark 2.0
Computational Test: Fast Fourier Transform
Mflops > Higher Is Better
PGI Compiler 17.4 . 331.49 |=================================================
GCC 6.3.0 ......... 335.26 |==================================================
LLVM Clang 4.0 .... 341.71 |===================================================


SciMark 2.0
Computational Test: Monte Carlo
Mflops > Higher Is Better
PGI Compiler 17.4 . 482.60 |==================================
GCC 6.3.0 ......... 659.94 |===============================================
LLVM Clang 4.0 .... 718.90 |===================================================


SciMark 2.0
Computational Test: Composite
Mflops > Higher Is Better
PGI Compiler 17.4 . 1532.92 |===================================
GCC 6.3.0 ......... 1588.70 |====================================
LLVM Clang 4.0 .... 2202.57 |==================================================