librccl DT_NEEDEDs librocm-core.so.1, so a GGML_HIP_RCCL=ON binary would not
exec from its bundled lib dir (measured: 'error while loading shared
libraries: librocm-core.so.1'). The layer-split build never pulled it in.
Layer split needs no collectives, so RCCL stayed OFF. The 2026-09-20 board
swap put both R9700s on CPU root ports with atomic routing, so a
tensor-parallel (row-split) runtime is now buildable: pass
GGML_HIP_RCCL=ON with a distinct BUILD_DIR beside the production one.
'cp -r SRC DST/' with a missing DST creates DST as a copy of SRC and drops a
directory level, so rocblas/library/* landed as lib/rocblas/* and hipblaslt's
arch subdirectories landed one level high. Nothing complains at load time: the
engine reads 29 GiB of weights, answers /health, and dies on the first request
with
rocBLAS error: Cannot read .../lib/rocblas/library/TensileLibrary.dat:
No such file or directory for GPU arch : gfx1201
Declare the destination and copy contents, both trees.
The runtime for the next frank-medium shape is mainline llama.cpp at
fb27a525, built for gfx1201 against the ROCm 7.14 nightly the ROCmFPX build
already used on this host, with the runtime bundled next to the binary.
Two things that pin the ref: DFlash2 (ggml-org/llama.cpp#27342) and qwen35
MTP. Neither is in the ROCmFPX fork's tip (c49ebdb, 2026-08-22), and the
DFlash2 drafter cannot run without the first.
The fetch script pulls the target at UD-Q8_K_XL plus the DFlash2 draft at
Q8_0, resumable and byte-verified -- a truncated 31 GB GGUF is otherwise a
load-time crash.
Frank