On Wed, Jun 23, 2021 at 10:44 AM Junchao Zhang <[email protected]> wrote:

Use VecGetArrayRead/Write() to get up-to-date host pointers to the vector array.

Humm, well HDF5 uses that now. I have to dig deeper.

--Junchao Zhang

On Wed, Jun 23, 2021 at 9:15 AM Mark Adams <[email protected]> wrote:

...

First, there seem to be two pages for VecGetArrayAndMemType (one has a pointer to the other).

So I need to get a CPU array for HDF5 viewing. Totally broken for devices.

I don't find a VecGetArrayCpu[HOST] that does the right thing.

Perhaps have VecGetArrayAndMemType return a valid CPU pointer when "mtype==NULL"?

Mark