verified -- jan
On Jan 27, 2007, at 14:01 , Simon Urbanek wrote:
>
> On Jan 26, 2007, at 11:22 AM, Jan de Leeuw wrote:
>
>> Switching the icc compiler flag from -O3 to -O0 for deriv.c solves
>> the problem. As I said, I have to do that for regex.c as well.
>>
>
> Just for the record - the latte
On Jan 26, 2007, at 11:22 AM, Jan de Leeuw wrote:
> Switching the icc compiler flag from -O3 to -O0 for deriv.c solves
> the problem. As I said, I have to do that for regex.c as well.
>
Just for the record - the latter is due to a bug in the regex code:
one of the functions is declared "pure
Switching the icc compiler flag from -O3 to -O0 for deriv.c
solves the problem. As I said, I have to do that for
regex.c as well.
-- Jan
On Jan 26, 2007, at 07:52 , Prof Brian Ripley wrote:
> Ouch. It does look like a compiler over-optimization sort of problem.
>
> I presume that is the ix86 ic
Yes. No such problem with the pair gcc/ifort. I'll try
less aggressive optimization with icc on deriv.c (I
also have to do that for regex.c).
-- Jan
On Jan 26, 2007, at 07:52 , Prof Brian Ripley wrote:
> Ouch. It does look like a compiler over-optimization sort of problem.
>
> I presume that is
Ouch. It does look like a compiler over-optimization sort of problem.
I presume that is the ix86 icc, with which we have not had much success on
either Linux or Windows. I've just checked x86_64 icc on Linux, and that
is working correctly.
Brian
On Fri, 26 Jan 2007, Jan de Leeuw wrote:
> Thi
This is R revision 40576 compiled with icc/ifort
on OS X 10.4.9 (8P2122). It may be the compiler.
-- J.
> example(deriv)
deriv> ## formula argument :
deriv> dx2x <- deriv(~ x^2, "x") ; dx2x
expression({
.value <- x^2
.grad <- array(0, c(length(.value), 1), list(NULL, c("x")))
.gr
On Thu, 25 Jan 2007, Jan de Leeuw wrote:
> but deriv() and friends do not work in R-devel (at least
> not on the Mac).
They work for me under Linux and Windows. What does example(deriv) give
you?
> ==
> Jan de Leeuw, 11667 Steinhoff Rd, F
but deriv() and friends do not work in R-devel (at least
not on the Mac).
==
Jan de Leeuw, 11667 Steinhoff Rd, Frazier Park, CA 93225
home 661-245-1725 skype 661-347-0667 global 254-381-4905
.mac: jdeleeuw +++ aim: deleeuwjan +++ skype: j_de
