Conda-based CI gets forced onto pocl 4, fails

[inducer]

Similar incident a few weeks ago: inducer/pytato#625

x-ref: inducer/pymbolic#228 (comment)

[inducer]

Here are two conda solutions, one with just pocl and the other with pocl>=6 as dependency. From a quick look, the pocl6 solution seems all around preferable; I don't see any notable downgrades. Not sure what the solver is seeing.

--- pocl4	2025-12-02 14:55:43.475821840 -0600
+++ pocl6	2025-12-02 14:55:43.450063664 -0600
@@ -1,7 +1,9 @@
+  - conda-forge/linux-64::_libgcc_mutex==0.1=conda_forge
+  - conda-forge/noarch::ca-certificates==2025.11.12=hbd8a1cb_0
   - conda-forge/linux-64::bzip2==1.0.8=hda65f42_8
   - conda-forge/linux-64::cairo==1.18.4=h3394656_0
   - conda-forge/linux-64::c-ares==1.34.5=hb9d3cd8_0
-  - conda-forge/linux-64::cython==3.2.2=py312h68e6be4_0
+  - conda-forge/linux-64::cython==3.2.2=py313hc80a56d_0
   - conda-forge/linux-64::fltk==1.3.10=hff38c0f_0
   - conda-forge/linux-64::fontconfig==2.15.0=h7e30c49_1
   - conda-forge/linux-64::freeglut==3.2.2=ha6d2627_3
@@ -9,12 +11,12 @@
   - conda-forge/linux-64::freetype==2.14.1=ha770c72_0
   - conda-forge/linux-64::git==2.52.0=pl5321h6d3cee1_1
   - conda-forge/linux-64::gmp==6.3.0=hac33072_2
-  - conda-forge/linux-64::gmpy2==2.2.1=py312hcaba1f9_2
+  - conda-forge/linux-64::gmpy2==2.2.1=py313h86d8783_2
   - conda-forge/linux-64::gmsh==4.15.0=ha0bfb42_3
   - conda-forge/linux-64::icu==75.1=he02047a_0
   - conda-forge/linux-64::imath==3.2.2=hde8ca8f_0
   - conda-forge/linux-64::isl==0.27=imath32_he9a3ec7_101
-  - conda-forge/linux-64::islpy==2025.2.5=py312h3d212ed_100
+  - conda-forge/linux-64::islpy==2025.2.5=py313hf7904c9_100
   - conda-forge/linux-64::jasper==4.2.8=he3c4edf_0
   - conda-forge/linux-64::jemalloc==5.3.0=h5888daf_1
   - conda-forge/linux-64::jxrlib==1.1=hd590300_3
@@ -36,7 +38,6 @@
   - conda-forge/linux-64::libfreetype==2.14.1=ha770c72_0
   - conda-forge/linux-64::libfreetype6==2.14.1=h73754d4_0
   - conda-forge/linux-64::libgcc==15.2.0=he0feb66_14
-  - conda-forge/linux-64::_libgcc_mutex==0.1=conda_forge
   - conda-forge/linux-64::libgcc-ng==15.2.0=h69a702a_14
   - conda-forge/linux-64::libgfortran==15.2.0=h69a702a_14
   - conda-forge/linux-64::libgfortran5==15.2.0=h68bc16d_14
@@ -46,7 +47,7 @@
   - conda-forge/linux-64::libglvnd==1.7.0=ha4b6fd6_2
   - conda-forge/linux-64::libglx==1.7.0=ha4b6fd6_2
   - conda-forge/linux-64::libgomp==15.2.0=he0feb66_14
-  - conda-forge/linux-64::libhwloc==1.11.13=h8b7812e_2
+  - conda-forge/linux-64::libhwloc==2.12.1=default_h3d81e11_1000
   - conda-forge/linux-64::libiconv==1.18=h3b78370_2
   - conda-forge/linux-64::libjemalloc==5.3.0=h5888daf_1
   - conda-forge/linux-64::libjpeg-turbo==3.1.2=hb03c661_0
@@ -54,8 +55,8 @@
   - conda-forge/linux-64::libllvm15==15.0.7=ha7bfdaf_5
   - conda-forge/linux-64::libllvmspirv15==15.0.5=h629725b_0
   - conda-forge/linux-64::liblzma==5.8.1=hb9d3cd8_2
+  - conda-forge/linux-64::libmpdec==4.0.0=hb9d3cd8_0
   - conda-forge/linux-64::libnghttp2==1.67.0=had1ee68_0
-  - conda-forge/linux-64::libnsl==2.0.1=hb9d3cd8_1
   - conda-forge/linux-64::libopenblas==0.3.30=pthreads_h94d23a6_4
   - conda-forge/linux-64::libopengl==1.7.0=ha4b6fd6_2
   - conda-forge/linux-64::libpng==1.6.51=h421ea60_0
@@ -72,11 +73,11 @@
   - conda-forge/linux-64::libxml2==2.13.9=h04c0eec_0
   - conda-forge/linux-64::libzlib==1.3.1=hb9d3cd8_2
   - conda-forge/linux-64::llvm-spirv-15==15.0.5=h629725b_0
-  - conda-forge/linux-64::markupsafe==3.0.3=py312h8a5da7c_0
+  - conda-forge/linux-64::markupsafe==3.0.3=py313h3dea7bd_0
   - conda-forge/linux-64::mpc==1.3.1=h24ddda3_1
   - conda-forge/linux-64::mpfr==4.2.1=h90cbb55_3
   - conda-forge/linux-64::ncurses==6.5=h2d0b736_3
-  - conda-forge/linux-64::numpy==2.3.5=py312h33ff503_0
+  - conda-forge/linux-64::numpy==2.3.5=py313hf6604e3_0
   - conda-forge/linux-64::occt==7.9.1=novtk_h185fe95_102
   - conda-forge/linux-64::ocl-icd==2.3.3=hb9d3cd8_0
   - conda-forge/linux-64::opencl-headers==2025.06.13=h5888daf_0
@@ -88,22 +89,23 @@
   - conda-forge/linux-64::pcre2==10.47=haa7fec5_0
   - conda-forge/linux-64::perl==5.32.1=7_hd590300_perl5
   - conda-forge/linux-64::pixman==0.46.4=h54a6638_1
-  - conda-forge/linux-64::pocl==4.0=h03a6ac1_2
-  - conda-forge/linux-64::pocl-core==4.0=hb452e98_2
-  - conda-forge/linux-64::pocl-cpu==4.0=h55a2082_2
-  - conda-forge/linux-64::pocl-cpu-minimal==4.0=hf9ad923_2
-  - conda-forge/linux-64::pocl-cuda==4.0=hb452e98_2
-  - conda-forge/linux-64::psutil==7.1.3=py312h5253ce2_0
+  - conda-forge/linux-64::pocl==6.0=h561d4bb_4
+  - conda-forge/linux-64::pocl-core==6.0=ha2e4a75_4
+  - conda-forge/linux-64::pocl-cpu==6.0=h62c1c40_4
+  - conda-forge/linux-64::pocl-cpu-minimal==6.0=h6e99c88_4
+  - conda-forge/linux-64::pocl-cuda==6.0=habafa4f_4
+  - conda-forge/linux-64::pocl-remote==6.0=h6e99c88_4
+  - conda-forge/linux-64::psutil==7.1.3=py313h54dd161_0
   - conda-forge/linux-64::pthread-stubs==0.4=hb9d3cd8_1002
-  - conda-forge/linux-64::pyfmmlib==2024.1.1=py312h6a55c13_3
-  - conda-forge/linux-64::pyopencl==2025.2.7=py312hf890105_0
-  - conda-forge/linux-64::python==3.12.12=hd63d673_1_cpython
-  - conda-forge/linux-64::python-symengine==0.14.0=py312h406a2a9_1
-  - conda-forge/linux-64::pyvkfft==2023.2=py312h405e085_3
+  - conda-forge/linux-64::pyfmmlib==2024.1.1=py313h9cc49e9_3
+  - conda-forge/linux-64::pyopencl==2025.2.7=py313hfaae9d9_0
+  - conda-forge/linux-64::python==3.13.9=hc97d973_101_cp313
+  - conda-forge/linux-64::python-symengine==0.14.0=py313hf59a7b8_1
+  - conda-forge/linux-64::pyvkfft==2025.1.1=py313ha13450f_1
   - conda-forge/linux-64::rapidjson==1.1.0.post20240409=h3f2d84a_2
   - conda-forge/linux-64::readline==8.2=h8c095d6_2
-  - conda-forge/linux-64::scipy==1.16.3=py312h7a1785b_1
-  - conda-forge/linux-64::siphash24==1.8=py312h4c3975b_1
+  - conda-forge/linux-64::scipy==1.16.3=py313h11c21cd_1
+  - conda-forge/linux-64::siphash24==1.8=py313h07c4f96_1
   - conda-forge/linux-64::spirv-tools==2024.3=h84d6215_0
   - conda-forge/linux-64::symengine==0.14.0=h064106a_1
   - conda-forge/linux-64::tk==8.6.13=noxft_ha0e22de_103
@@ -119,8 +121,7 @@
   - conda-forge/linux-64::xorg-libxrender==0.9.12=hb9d3cd8_0
   - conda-forge/linux-64::xorg-libxt==1.3.1=hb9d3cd8_0
   - conda-forge/linux-64::zstd==1.5.7=h3691f8a_5
-  - conda-forge/noarch::ca-certificates==2025.11.12=hbd8a1cb_0
-  - conda-forge/noarch::cpython==3.12.12=py312hd8ed1ab_1
+  - conda-forge/noarch::cpython==3.13.9=py313hd8ed1ab_101
   - conda-forge/noarch::fonts-conda-ecosystem==1=0
   - conda-forge/noarch::fonts-conda-forge==1=hc364b38_1
   - conda-forge/noarch::font-ttf-dejavu-sans-mono==2.37=hab24e00_0
@@ -130,14 +131,12 @@
   - conda-forge/noarch::importlib-metadata==8.7.0=pyhe01879c_1
   - conda-forge/noarch::mako==1.3.10=pyhcf101f3_1
   - conda-forge/noarch::mpmath==1.3.0=pyhd8ed1ab_1
-  - conda-forge/noarch::pip==25.3=pyh8b19718_0
+  - conda-forge/noarch::pip==25.3=pyh145f28c_0
   - conda-forge/noarch::platformdirs==4.5.0=pyhcf101f3_0
-  - conda-forge/noarch::python_abi==3.12=8_cp312
+  - conda-forge/noarch::python_abi==3.13=8_cp313
   - conda-forge/noarch::pytools==2025.2.5=pyhd8ed1ab_0
-  - conda-forge/noarch::setuptools==80.9.0=pyhff2d567_0
   - conda-forge/noarch::sympy==1.14.0=pyh2585a3b_105
   - conda-forge/noarch::typing-extensions==4.15.0=h396c80c_0
   - conda-forge/noarch::typing_extensions==4.15.0=pyhcf101f3_0
   - conda-forge/noarch::tzdata==2025b=h78e105d_0
-  - conda-forge/noarch::wheel==0.45.1=pyhd8ed1ab_1
   - conda-forge/noarch::zipp==3.23.0=pyhcf101f3_1

[inducer]

#294 should have a fix.

[alexfikl]

From a quick look, the pocl6 solution seems all around preferable; I don't see any notable downgrades.

It even bumped Python to 3.13, which seems like a good idea too 😁