[GAP Forum] Schur multiplier of GL(3,4)?

[Nguyen,Hung Ngoc]

Dear Forum,

I am trying to compute the Schur multiplier of GL(3,4) and here is what I got:

>G:=GeneralLinearGroup(3,4);
[GL(3,4)
>AbelianInvariantsMultiplier(G);
[Error, the coset enumeration has defined more than 256000 cosets

I just wonder if we can do it by using the ''cohomolo'' package and  working under UNIX/LINUX systems? 

Thank you very much for your help,
Hung.