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While trying to debug a comms problem that we have using the HIP backend in tmLQCD+QUDA I notived that the topology string explicitly makes use of `CUDA_VISIBLE_DEVICES` (if defined) while the corresp…
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In testing libcu++ for deployment in QUDA, I found that libcu++ atomic fails to compile if address sanitizer is enabled.
```bash
$ nvcc bug.cu -o bug -arch=sm_70 -Xcompiler -fsanitize=address -Ilibc…
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(quoting @kostrzewa from the AMD workshop's QUDA chat)
We should probably do two things:
1. finally remove the --enable-gpu flag and all the gpu stuff that Florian added about a decade ago. (we…
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When `MonitorForces = yes` an error occurs in QUDA. More investigation required.
The error is the following:
```
MG level 0 (GPU): ERROR: Spinor volume 351232 doesn't match gauge volume 0 (rank 0…
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Here
https://github.com/lattice/quda/blob/406ca834577775c122e151bf17a02036122b606d/lib/communicator_mpi.cpp#L7
It would be better to use `MPI_MAX_ERROR_STRING` instead.
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I use Chroma with QUDA 1.1.0 to perform the invertion of a light quark from a 24^3*72 lattice using QUDA_MULTIGRID_CLOVER_INVERTER with a V100 card. While each of the 12 sectors of a propagator costs …
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I tried building current develop (e2415ef161f06f) on an Ubuntu system with CUDA 11.5, but ran into
```
[ 30%] Building CUDA object lib/CMakeFiles/quda.dir/dslash_coarse.cu.o
cd /home/fwinter/git/…
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In the current `develop` branch, staggered MG fails in `half` during the block orthogonalize path, where the norms of the block-ortho'd fields coming out as zero. This is low priority because there ar…
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When `QUDA_INTERFACE_QDP=OFF` at compilation, it seems that `copy_gauge_inc` is not built. This does not seem like expected behavior. ERROR below.
```
ERROR: QDP interface has not been built
(…
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This is a very strange issue that has come up quite recently and which might require another bisection, unless there's a smoking gun that I'm missing or it's simply an instance of me doing something s…