- Jul 27, 2002
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Inspired by n7's overclocking experiment here (whooping 50 loops! 61 GFlops!), I decided to run Linpack one more time on my 955 BE system. While most here know Linpack is an excellent stability test, less known is it also is quite an important benchmark in HPC world. Linpack scores will show up in most server CPU reviews, though not in desktop CPU reviews.
I don't know how Linpack scores translate to performance in desktop applications, but we're enthusiasts, and we don't take kindly to real-world stuff anway - so why not check out how great our desktop CPUs are in this benchmark? Also don't forget that Linpack is one of the most stressful tests on CPU-memory subsystem, so if you've overclocked your CPU it's worth spending some time to make sure things are stable.
So let the fun begin. Let me loosely outline the rule so that we can gather some results that are meaningful. First, grab LinX. It's a GUI-enhanced version of Linpack and it will automatically run either 64-bit version or 32-version upon detecting your OS. (It also tells you if your system fails to finish the runs) Then,
1) Use all available memory. A system from a cold-boot will let Linpack have 80%+ of total system RAM.
2) Dual-core CPUs - at least 10 loops, Quad-core CPUs - at least 20 loops.
3) Report the Max GFlops achieved. LinX will give that number at the bottom.
4) Report the OS, CPU frequency, memory frequency as well as anything else you think that matters. ^_^
Edit: Added a Google Doc link so that anyone can enter the data. (Don't mess with others' plz)
Linpack Challenge Entries
Here is mine.
CPU: Phenom II 955 BE
Core Frequency: 3600 MHz (1.35V, air-cooled by Zalman CNPS9700)
NB/Uncore Frequency: 2250 MHz (1.10V)
Memory Frequency: DDR2-900 (5-5-5-15)
Peak Performance: 45.33 GFlops
I don't know how Linpack scores translate to performance in desktop applications, but we're enthusiasts, and we don't take kindly to real-world stuff anway - so why not check out how great our desktop CPUs are in this benchmark? Also don't forget that Linpack is one of the most stressful tests on CPU-memory subsystem, so if you've overclocked your CPU it's worth spending some time to make sure things are stable.
So let the fun begin. Let me loosely outline the rule so that we can gather some results that are meaningful. First, grab LinX. It's a GUI-enhanced version of Linpack and it will automatically run either 64-bit version or 32-version upon detecting your OS. (It also tells you if your system fails to finish the runs) Then,
1) Use all available memory. A system from a cold-boot will let Linpack have 80%+ of total system RAM.
2) Dual-core CPUs - at least 10 loops, Quad-core CPUs - at least 20 loops.
3) Report the Max GFlops achieved. LinX will give that number at the bottom.
4) Report the OS, CPU frequency, memory frequency as well as anything else you think that matters. ^_^
Edit: Added a Google Doc link so that anyone can enter the data. (Don't mess with others' plz)
Linpack Challenge Entries
Here is mine.
CPU: Phenom II 955 BE
Core Frequency: 3600 MHz (1.35V, air-cooled by Zalman CNPS9700)
NB/Uncore Frequency: 2250 MHz (1.10V)
Memory Frequency: DDR2-900 (5-5-5-15)
Peak Performance: 45.33 GFlops
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