Re: [flint-devel] F_mpz_poly module

[Bill H. <goo...@go...>]

I found the problem with F_mpz_poly_add. Basically when coefficients
were being demoted as a result of cancellations, the mpz_t's were
being lost instead of returned to the memory manager.

The times are now much more what I would expect, and close to the
FLINT 1.x series times.

So now FLINT has a sensible integer format and writing polynomial
functions is quite easy. The other advantage of the new model is that
attaching polynomials using F_mpz_poly_attach will still be possible.
It wasn't under the previous model.

length 100, bits = 50, iter = 1000000
=====================================
mpz_poly:
  clear-init2-add-add : 24.342s
  clear-init2-add     : 17.957s
  clear-init2         : 9.227s
flint fmpz_poly:
  clear-init-add-add : 10.522s
  clear-init-add     : 5.059s
  clear-init         : 0.183s
flint-2 F_mpz_poly:
  clear-init-add-add: 2.360s
  clear-init2-add:      1.320s
  clear-init2:            0.400s

length 100, bits = 64, iter = 1000000
=====================================
mpz_poly:
  clear-init2-add-add : 24.608s
  clear-init2-add     : 17.758s
  clear-init2         : 9.245s
flint fmpz_poly:
  clear-init-add-add : 9.861s
  clear-init-add     : 3.804s
  clear-init         : 0.183s
flint-2 F_mpz_poly:
  clear-init-add-add: 11.740s
  clear-init2-add:      7.240s
  clear-init2:            0.450s

length 100, bits = 1000, iter = 1000000
=====================================
mpz_poly:
  clear-init2-add-add : 39.639s
  clear-init2-add     : 28.760s
  clear-init2         : 10.445s
flint fmpz_poly:
  clear-init-add-add : 19.321s
  clear-init-add     : 8.697s
  clear-init         : 0.235s
flint-2 F_mpz_poly:
  clear-init-add-add: 18.940s
  clear-init2-add:      9.240s
  clear-init2:            0.500s

length 100, bits = 100, 200, iter = 1000000
=====================================
mpz_poly:
  clear-init2-add-add : 33.716s
  clear-init2-add     : 18.921s
  clear-init2         : 10.237s
flint fmpz_poly:
  clear-init-add-add : 14.611s
  clear-init-add     : 6.425s
  clear-init         : 0.190s
flint-2 F_mpz_poly:
  clear-init-add-add: 12.160s
  clear-init2-add:      6.520s
  clear-init2:            0.450s

Bill.