10/12/2004 New core: AMBER core 82
We are releasing a new core, based on the AMBER MD code (see http://amber.scripps.edu/ .) The AMBER core will give us functionality not present in either the Tinker or Gromacs cores.
<P>AMBER uses double precision only. AMBER does not currently have SSE2 specific assembly code and so it will likely run closer to Tinker than Gromacs in general performance. We are planning on adding SSE2 support in future revs, but to keep the core as stable as possible in the initial rollout, we've left it out. Keep in mind that since AMBER uses double precision, SSE2 won't help *that* much.
<P>Since this is a new core, there may be unexpected problems. However, this core has been extensively tested in house and has done extremely well in beta testing. Also, since it doesn't use SSE2 as heavily as Gromacs or other issues which push the limits on CPUs, it will likely be less troublesome to release than the Gromacs core was.
<P>We are very excited about the new scientific possibilities that are posssible with the new core. More news on these results as they come in!
<P>译文如下：
<P>2004年10月12日 新核心：AMBER核心82
我们准备发布新核心，基于AMBER MD代码(详见http://amber.scripps.edu/)AMBER核心有正在使用的Tinker和Gromacs核心所没有功能。
<P>AMBER只使用双精度运算。AMBER目前不支持SSE2指令集，因此在一般情况下与Gromacs相比它的性能更接近于Tinker。我们会把SSE2指令集支持加入以提高运算速度，但是在早期发布版本里为保证核心尽可能稳定，我们没有使用它。记住AMBER使用双精度，所以SSE2暂时没有太大用处。
<P>因为这是新核心，可能会有意想不到的问题。不过，这核心在内测和β测试里表现得极其好。此外，因为它不像Gromacs那样依赖SSE2，而且对CPU没有什么限制，所以它的问题应该比Gromacs少得多。
<P>我们因新核心所可能有的新的科学可能性而非常激动。他们的结果出来后会发布更多的消息！
<P>翻译：VMZY
[此贴子已经被作者于2004-10-15 22:11:56编辑过]
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