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Re: Sibelius Software UK office shuts down
From: |
Han-Wen Nienhuys |
Subject: |
Re: Sibelius Software UK office shuts down |
Date: |
Mon, 6 Aug 2012 23:18:26 -0300 |
On Mon, Aug 6, 2012 at 9:56 PM, George_ <address@hidden> wrote:
> The reason this is important is because while IPC goes up incrementally and
> relatively slowly (IPC has done little more than double between 2005 [P4
> 660] and now [i7 3930X]) and clock speed is relatively stagnant (it's
> unlikely we'll ever get 8GHz stock x86 CPUs the way Intel predicted), core
> count is the only real way to dramatically improve performance - over a
> similar period, core count has gone up six-fold (in high-end parts), and
> it's set to continue. I agree, talking about a typesetting program running
> on a 192-core ARM server is a bit silly, but then, so is saying that an
> 8-fold increase in speed won't make the process instantaneous, then implying
> that for this reason we shouldn't look for ways to make it work.
I'm trying to explain that the constant factor (namely 8-fold) comes
at a tremendous cost. Writing multithreaded code without getting stuck
in race-conditions and deadlocks is extremely difficult and time
consuming, and lilypond already has a shortage of developers without
taking on parallelism.
In the context of the original remark (making lilypond more suited as
a rendering engine), multithreading is simply a stupid way to spend
programmer resources. If you're writing a GUI using Lily as a
renderer, have the GUI manage the data structures (and possibly, the
parallelism), so LilyPond can suffice to stay "simple" and
single-threaded,
--
Han-Wen Nienhuys - address@hidden - http://www.xs4all.nl/~hanwen
- Re: Sibelius Software UK office shuts down, (continued)
- Re: Sibelius Software UK office shuts down, Joseph Rushton Wakeling, 2012/08/05
- Re: Sibelius Software UK office shuts down, address@hidden, 2012/08/05
- Re: Sibelius Software UK office shuts down, David Kastrup, 2012/08/05
- Re: Sibelius Software UK office shuts down, George_, 2012/08/06
- Re: Sibelius Software UK office shuts down, Tim Roberts, 2012/08/06
- Re: Sibelius Software UK office shuts down, David Kastrup, 2012/08/06
- Re: Sibelius Software UK office shuts down, Han-Wen Nienhuys, 2012/08/06
- Re: Sibelius Software UK office shuts down, Joseph Rushton Wakeling, 2012/08/06
- Re: Sibelius Software UK office shuts down, Han-Wen Nienhuys, 2012/08/06
- Re: Sibelius Software UK office shuts down, George_, 2012/08/06
- Re: Sibelius Software UK office shuts down,
Han-Wen Nienhuys <=
- Re: Sibelius Software UK office shuts down, George_, 2012/08/07
- Re: Sibelius Software UK office shuts down, Han-Wen Nienhuys, 2012/08/07
- Re: Sibelius Software UK office shuts down, George_, 2012/08/07
- Re: Sibelius Software UK office shuts down, Martin Tarenskeen, 2012/08/08
- Paralellizing Lilypond [was: Re: Sibelius Software UK office shuts down], Joseph Rushton Wakeling, 2012/08/10
- Re: Paralellizing Lilypond [was: Re: Sibelius Software UK office shuts down], David Kastrup, 2012/08/10
- Re: Parallelizing Lilypond [was: Re: Sibelius Software UK office shuts down], Joseph Rushton Wakeling, 2012/08/10
- Re: Parallelizing Lilypond [was: Re: Sibelius Software UK office shuts down], David Kastrup, 2012/08/10
- Re: Parallelizing Lilypond [was: Re: Sibelius Software UK office shuts down], Joseph Rushton Wakeling, 2012/08/10
- Re: Paralellizing Lilypond [was: Re: Sibelius Software UK office shutsdown], Phil Holmes, 2012/08/10