Activity

From 12 Nov 2014 to 11 Dec 2014

16:38 Feature #651: Optimized algorithms for implicitization (slicing algorithm, elim, subalgebra..): I'm running tests with the profiler on our linux virtual machine.
One surprise was that the profiler gave a mysterio... Anna Maria Bigatti

23:02 Feature #651: Optimized algorithms for implicitization (slicing algorithm, elim, subalgebra..): One problem with @ImpliciDirectWithCond@ is that the normal form computations take too long. Here is an idea which _... John Abbott
16:22 Feature #437: MemPool: order free blocks?: It seems the correct (portable) way to sort a @vector<void*>@ is to use @sort(v.begin(), v.end(), std::less)@.
Apa... John Abbott

16:15 Feature #651: Optimized algorithms for implicitization (slicing algorithm, elim, subalgebra..): John Abbott wrote:
> Anna did report disappointing performance from the initial implementation -- she will investiga... Anna Maria Bigatti
11:32 Feature #651: Optimized algorithms for implicitization (slicing algorithm, elim, subalgebra..): At a meeting yesterday it was decided that effort should be put into developing/refining *@ImplicitDirectWithCond@*. ... John Abbott
11:30 Feature #651: Optimized algorithms for implicitization (slicing algorithm, elim, subalgebra..): The very latest version of @ImplicitByPoints3@ does occasionally go a little faster than @ImplicitDirectLPP2@, but it... John Abbott

16:04 Design #649: Make SmallFpImpl safer to use: I've just wasted a good hour trying to figure out why my new code was about 10% slower than the old code.
The reason... John Abbott
11:54 Feature #651: Optimized algorithms for implicitization (slicing algorithm, elim, subalgebra..): JAA has implemented in C++/CoCoALib (first prototypes of): @ImplicitDirect@ (with variants @LPP@ and @WithCond@), als... John Abbott
11:38 Bug #648 (Closed): QBGenerator crashes: John Abbott

13:44 Feature #651 (In Progress): Optimized algorithms for implicitization (slicing algorithm, elim, subalgebra..): (may keywords in the title to simplify future searches ;-)
Investigate new algorithms for implicitization, i.e. fi... Anna Maria Bigatti

19:03 Design #649: Make SmallFpImpl safer to use: I have implemented both (1) and (2). A quick comparison suggests that they are roughly equal in speed (but I'm still... John Abbott
11:30 Design #649: Make SmallFpImpl safer to use: It is not true that approach (1) allows the user to use 0 and 1 as arguments to the memfns. In fact, the only use in... John Abbott

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