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Merge pull request #728 from jeromerobert/fix-no-stack-alloc 

Fix make MAX_STACK_ALLOC=0
This commit is contained in:
Zhang Xianyi 2016-01-04 15:04:24 -06:00
parent 3857581adf f9890a6452
commit 7d144aaabc
3 changed files with 9 additions and 6 deletions
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7
Makefile.rule
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@ -163,10 +163,11 @@ COMMON_PROF = -pg
# Build Debug version # Build Debug version
# DEBUG = 1 # DEBUG = 1
# Improve GEMV and GER for small matrices by stack allocation. # Set maximum stack allocation.
# For details, https://github.com/xianyi/OpenBLAS/pull/482 # The default value is 2048. 0 disable stack allocation a may reduce GER and GEMV
# performance. For details, https://github.com/xianyi/OpenBLAS/pull/482
# #
MAX_STACK_ALLOC=2048 # MAX_STACK_ALLOC = 0
# Add a prefix or suffix to all exported symbol names in the shared library. # Add a prefix or suffix to all exported symbol names in the shared library.
# Avoid conflicts with other BLAS libraries, especially when using # Avoid conflicts with other BLAS libraries, especially when using

3
Makefile.system
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@ -328,7 +328,8 @@ ifdef SANITY_CHECK
CCOMMON_OPT += -DSANITY_CHECK -DREFNAME=$(*F)f$(BU) CCOMMON_OPT += -DSANITY_CHECK -DREFNAME=$(*F)f$(BU)
endif endif
ifdef MAX_STACK_ALLOC MAX_STACK_ALLOC ?= 2048
ifneq ($(MAX_STACK_ALLOC), 0)
CCOMMON_OPT += -DMAX_STACK_ALLOC=$(MAX_STACK_ALLOC) CCOMMON_OPT += -DMAX_STACK_ALLOC=$(MAX_STACK_ALLOC)
endif endif

5
interface/gemv.c
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@ -270,10 +270,11 @@ void CNAME(enum CBLAS_ORDER order,
} }
#endif #endif
// stack overflow check
assert(stack_check==3.14159265358979323846);
#ifdef MAX_STACK_ALLOC #ifdef MAX_STACK_ALLOC
// stack overflow check
assert(stack_check==3.14159265358979323846);
if(!stack_alloc_size){ if(!stack_alloc_size){
blas_memory_free(buffer); blas_memory_free(buffer);
} }