Right now the C/R code fails because of a change introduced in opal/mca/compress/base/compress_base_open.c in 2013 with commit
git 734c724ff76d9bf814f3ab0396bcd9ee6fddcd1b svn r28239 Update OPAL frameworks to use the MCA framework system. This commit changed a lot but also the return value of the function from OPAL_SUCCESS to OPAL_ERR_NOT_AVAILABLE. With following patch I can make it work again: diff --git a/opal/mca/compress/base/compress_base_open.c b/opal/mca/compress/base/compress_base_open.c index a09fe59..69eabfa 100644 --- a/opal/mca/compress/base/compress_base_open.c +++ b/opal/mca/compress/base/compress_base_open.c @@ -45,11 +45,11 @@ MCA_BASE_FRAMEWORK_DECLARE(opal, compress, NULL, opal_compress_base_register, op static int opal_compress_base_register (mca_base_register_flag_t flags) { /* Compression currently only used with C/R */ if( !opal_cr_is_enabled ) { opal_output_verbose(10, opal_compress_base_framework.framework_output, "compress:open: FT is not enabled, skipping!"); - return OPAL_ERR_NOT_AVAILABLE; + return OPAL_SUCCESS; } return OPAL_SUCCESS; My question is if OPAL_ERR_NOT_AVAILABLE is indeed the correct return value and the function calling opal_compress_base_register() should actually handle OPAL_ERR_NOT_AVAILABLE or if returning OPAL_SUCCESS is still the right return value? Adrian