dschrempf / edcluster Goto Github PK

Hi,

I am trying to use the UDM lclr models with iqtree on a toy alignment of 100 species and 500 sites.

Our computer has 1.5TB RAM and 40 cores.

However, iqtree runs successfully only with up to 128 components, and not with 256 or more.
The command I use is:

iqtree -s aln1_100species_500sites.aln -mdef ../tools/EDCluster/Distributions/hogenom/udm_hogenom_0256_lclr_iqtree.nex -m Poisson+UDM0256LCLR -nt AUTO

and the error I get is:

ERROR: STACK TRACE FOR DEBUGGING:
ERROR: Not enough memory, allocation of -15032385536 bytes failed (bad_alloc)

Is this a known issue?
Is it possible to use the PMSF approximation in iqtree in combination with the UDM to overcome this?

Paschalis