On 10/30/23 09:28, Waldek Hebisch wrote:
Have you tried to set GCL_MEM_MULTIPLE so that GCL uses slightly less than 2Gb of memory? With such setting patch below should be not needed. And IME parallel builds with GCL are usable only with sufficiently small GCL_MEM_MULTIPLE (otherwise system is thrashing). Setting *default-large-memory-model-p* means that generated code is slower. I do not know how much slower, old info said that about 7-10% slower. We should do some testing to know.
I run all tests in src/input, the results are: GCL_MEM_MULTIPLE: real 4m38.479s user 4m14.601s sys 0m25.861s large-memory-model-p: real 4m53.449s user 4m7.267s sys 0m48.138s So with *default-large-memory-model-p*, the code spends much more time in kernel space, but the overall slow down is 5%. - Qian
- Qian --- trunk/src/lisp/Makefile.in 2022-07-16 14:43:58.443666098 +0200 +++ dist/src/lisp/Makefile.in 2023-02-11 15:36:50.248556407 +0100 @@ -68,7 +68,8 @@ ' (compiler::emit-fn t))' \ ' (when (fboundp (quote si::sgc-on))' \ ' (si::sgc-on nil))' \ - ' (setq compiler::*default-system-p* t))"' \ + ' (setq compiler::*default-system-p* t)' \ + ' (setq compiler::*default-large-memory-model-p* t))"' \ ' si::*system-directory* (quote (list ".lsp")))' \ ' "$(lisp_c_objects) $(fricas_c_runtime_extra)")' \ | $(FRICAS_LISP) -- You received this message because you are subscribed to the Google Groups "FriCAS - computer algebra system" group. To unsubscribe from this group and stop receiving emails from it, send an email to fricas-devel+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/fricas-devel/318057da-c7ff-47da-9614-9d6b3ba198b2%40gmail.com.
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