新手發問~ 請多包涵@@
U: i7-2600K oc 4.5G 很普通的小超 浮點運算Gflops出問題@@
Vcore: offset +0.005v
C1E/C3/C6 disabled
LLC: LV1 平行線
MB: Asrock Z68 EX4
Ram: kingston 4G DDR3-1333 x4
HHD: 日立2TB(沒裝SSD)
OS: Win7 home "SP1" 等於有開AVX了~ (桌面Aero有開)
昨天用IBT燒機，發現Gflops只有7x 上網查 基本上大家i7沒開AVX是50+- 開了約x2，大約9x~100+
如果再用4C4T，關掉超線程之後，都能到達130+- (CPU 4.x~5.xG 差不多....)
換句話說: 標準就是 100/130 (4T/8T)
我關掉HT，4C4T卻也只達到9x
所以總共只有7x/9x... 我ram 特別衝1600看看，也只差2 3點
不死心想說AVX有甚麼地方要改，又去DL Linx(0.64)_10.3.4.007來測，結果一樣-.-
Ram:1024~4096都試過，差不多 (跑個1~3圈看gflops而已)
下面節錄簡單的測試: 至於標準的100/130 網路上每個燒機的有SP1+AVX的到處都一樣@@
Intel(R) LINPACK 64-bit data - LinX 0.6.4
Current date/time: Tue Jul 12 17:36:34 2011
CPU frequency: 4.496 GHz
Number of CPUs: 1
Number of cores: 4
Number of threads: 8
Parameters are set to:
Number of tests : 1
Number of equations to solve (problem size) : 23118
Leading dimension of array : 23128
Number of trials to run : 3
Data alignment value (in Kbytes) : 4
Maximum memory requested that can be used = 4277851488, at the size = 23118
============= Timing linear equation system solver =================
Size LDA Align. Time(s) GFlops Residual Residual(norm)
23118 23128 4 103.543 79.5603 4.822580e-002 3.204711e+006
----------------------------------------------------------------------------------------------------------------------------
Intel(R) LINPACK 64-bit data - LinX 0.6.4
Current date/time: Tue Jul 12 15:26:26 2011
CPU frequency: 4.498 GHz
Number of CPUs: 1
Number of cores: 4
Number of threads: 4
Parameters are set to:
Number of tests : 1
Number of equations to solve (problem size) : 23118
Leading dimension of array : 23128
Number of trials to run : 1
Data alignment value (in Kbytes) : 4
Maximum memory requested that can be used = 4277851488, at the size = 23118
============= Timing linear equation system solver =================
Size LDA Align. Time(s) GFlops Residual Residual(norm)
23118 23128 4 85.369 96.4972 4.890407e-010 3.249784e-002
Performance Summary (GFlops)
Size LDA Align. Average Maximal
23118 23128 4 96.4972 96.4972
End of tests
網路上隨便找跟我CPU/RAM頻率一樣的燒機圖:
4C8T的: Gflops 100+
常駐程式就基本的，諾頓防毒(關不掉)/z68的Virtu/Intel SRT
用real temp看溫度 4x~81度(室溫31.5度左右)
一些VTT也調到1.2v過，speedstep也試過
4C4T的: 連i5也是一樣的等級 Gflops 12x+
(他們的RAM都不高)
想請問，到底是我設定有問題，還是CPU瑕疵品，需要更換?
買快1個月了，要換這幾天就要換了@@
請大大們，高手們幫幫忙吧QQ
謝謝!!
U: i7-2600K oc 4.5G 很普通的小超 浮點運算Gflops出問題@@
Vcore: offset +0.005v
C1E/C3/C6 disabled
LLC: LV1 平行線
MB: Asrock Z68 EX4
Ram: kingston 4G DDR3-1333 x4
HHD: 日立2TB(沒裝SSD)
OS: Win7 home "SP1" 等於有開AVX了~ (桌面Aero有開)
昨天用IBT燒機，發現Gflops只有7x 上網查 基本上大家i7沒開AVX是50+- 開了約x2，大約9x~100+
如果再用4C4T，關掉超線程之後，都能到達130+- (CPU 4.x~5.xG 差不多....)
換句話說: 標準就是 100/130 (4T/8T)
我關掉HT，4C4T卻也只達到9x
所以總共只有7x/9x... 我ram 特別衝1600看看，也只差2 3點
不死心想說AVX有甚麼地方要改，又去DL Linx(0.64)_10.3.4.007來測，結果一樣-.-
Ram:1024~4096都試過，差不多 (跑個1~3圈看gflops而已)
下面節錄簡單的測試: 至於標準的100/130 網路上每個燒機的有SP1+AVX的到處都一樣@@
Intel(R) LINPACK 64-bit data - LinX 0.6.4
Current date/time: Tue Jul 12 17:36:34 2011
CPU frequency: 4.496 GHz
Number of CPUs: 1
Number of cores: 4
Number of threads: 8
Parameters are set to:
Number of tests : 1
Number of equations to solve (problem size) : 23118
Leading dimension of array : 23128
Number of trials to run : 3
Data alignment value (in Kbytes) : 4
Maximum memory requested that can be used = 4277851488, at the size = 23118
============= Timing linear equation system solver =================
Size LDA Align. Time(s) GFlops Residual Residual(norm)
23118 23128 4 103.543 79.5603 4.822580e-002 3.204711e+006
----------------------------------------------------------------------------------------------------------------------------
Intel(R) LINPACK 64-bit data - LinX 0.6.4
Current date/time: Tue Jul 12 15:26:26 2011
CPU frequency: 4.498 GHz
Number of CPUs: 1
Number of cores: 4
Number of threads: 4
Parameters are set to:
Number of tests : 1
Number of equations to solve (problem size) : 23118
Leading dimension of array : 23128
Number of trials to run : 1
Data alignment value (in Kbytes) : 4
Maximum memory requested that can be used = 4277851488, at the size = 23118
============= Timing linear equation system solver =================
Size LDA Align. Time(s) GFlops Residual Residual(norm)
23118 23128 4 85.369 96.4972 4.890407e-010 3.249784e-002
Performance Summary (GFlops)
Size LDA Align. Average Maximal
23118 23128 4 96.4972 96.4972
End of tests
網路上隨便找跟我CPU/RAM頻率一樣的燒機圖:
4C8T的: Gflops 100+
常駐程式就基本的，諾頓防毒(關不掉)/z68的Virtu/Intel SRT
用real temp看溫度 4x~81度(室溫31.5度左右)
一些VTT也調到1.2v過，speedstep也試過
4C4T的: 連i5也是一樣的等級 Gflops 12x+
(他們的RAM都不高)
想請問，到底是我設定有問題，還是CPU瑕疵品，需要更換?
買快1個月了，要換這幾天就要換了@@
請大大們，高手們幫幫忙吧QQ
謝謝!!