Bug#877316: clblas: Crashes on single-precision-only hardware, due to double-precision literals

[harish k]

On Wed, 4 Oct 2017 04:06:18 +0100 Ghislain Vaillant <ghisvail at gmail.com>
wrote:
> Hi Rebecca,
>
> On Sat, 30 Sep 2017 14:47:03 +0100 "Rebecca N. Palmer"
> <rebecca_palmer at zoho.com> wrote:
> > Package: libclblas2
> > Version: 2.12-1
> > Control: tags -1 upstream
> > Control: affects -1 beignet-opencl-icd
> >
> > Some clblas operations use '0.0' (a double-precision literal) not
'0.0f'
> > (a single-precision literal) even when processing single-precision
arrays.
> >
> > This causes it to crash on GPUs that don't support double precision:
> >
> > ASSERTION FAILED: sel.hasDoubleType()
> >    at file
> > /build/beignet-1.3.1/backend/src/backend/gen_insn_selection.cpp,
> > function void
> > gbe::ConvertInstructionPattern::convertBetweenFloatDouble(gbe:
:Selection::Opaque&,
> > const gbe::ir::ConvertInstruction&, bool&) const, line 6148
> >
> > This particular 0.0 appears to have come from
> > http://sources.debian.net/src/clblas/2.12-1/src/library/
blas/AutoGemm/KernelOpenCL.py/#L368,
> > but there may well be more.
> >
> > This issue also exists in upstream git.
>
> Are you aware of an existing bug filed upstream for this? If so, could
> you link it to this bug report with an appropriate forward comand ?
>
> Otherwise, would you please consider filing the bug upstream, since you
> already triaged it as non Debian specific.
>
> Thanks for investigating this.
>
> Ghis
>
>

Hi, I am also getting this same error message while trying to run some
examples from pyopencl

It seems like issue with beignet-1.3.1 package.

I am running debian buster & beignet=1.3.1-1

This is the message I am getting
ASSERTION FAILED: sel.hasDoubleType()
  at file /build/beignet-1.3.1/backend/src/backend/gen_insn_selection.cpp,
function void gbe::ConvertInstructionPattern::convertBetweenFloatDouble(gbe::Selection::Opaque&,
const gbe::ir::ConvertInstruction&, bool&) const, line 6148
Trace/breakpoint trap
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